#617FEE
Closest named color: Cornflower (#6A79F7). oklch(62.9% 0.169 269.6), rgb(97, 127, 238).
Aa
Black text reads best on this color (5.77:1).
About this color
#617FEE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.169 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.023 away. Black text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #617FEE |
| RGB | rgb(97, 127, 238) |
| HSL | hsl(227, 81%, 66%) |
| OKLCH | oklch(62.9% 0.169 269.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #617FEE | 3.63:1 | AA large text | Lc -69.2 | Content text, not long reading |
| Black text on #617FEE | 5.77:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #617FEE text on white | 3.63:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #617FEE text on black | 5.77:1 | AA | Lc -38.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFB
oklch(93.7% 0.024 267.9)
-
Step 200
200
#CDD8F9
oklch(88.4% 0.047 270.8)
-
Step 300
300
#ABBFF7
oklch(80.9% 0.083 269.3)
-
Step 400
400
#809BF3
oklch(70.6% 0.133 269.8)
-
Step 500
500 (this color)
#617FEE
oklch(62.9% 0.169 269.6)
-
Step 600
600
#4A66DD
oklch(55.5% 0.184 269.5)
-
Step 700
700
#3C54C0
oklch(49.1% 0.171 269.6)
-
Step 800
800
#31459B
oklch(42.6% 0.142 269.6)
-
Step 900
900
#2B3B7B
oklch(37.6% 0.11 269.8)
-
Step 950
950
#192348
oklch(26.9% 0.07 269.8)
#617FEE with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #498DF2 | 0.039 |
| Deuteranopia (no green cones) | #3280EC | 0.043 |
| Tritanopia (no blue cones) | #0098AB | 0.148 |
| Achromatopsia (no color) | #868686 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #617FEE
#617FEE
oklch(62.9% 0.169 269.6)
- #A78400
#A78400
oklch(62.9% 0.128 89.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #617FEE, closest first.
No curated palette has a color within ΔE 0.04 of #617FEE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.023
- Soft Blue #6488EA ΔE 0.026
- Dark Sky Blue #448EE4 ΔE 0.049
- Chefchaouen Blue #4895EF ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.058
- Clear Blue #247AFD ΔE 0.058
- Dodger Blue #1E90FF ΔE 0.060
- Medium Slate Blue #7B68EE ΔE 0.061
Use #617FEE in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.