#617FE9
Closest named color: Soft Blue (#6488EA). oklch(62.5% 0.163 269.4), rgb(97, 127, 233).
Aa
Black text reads best on this color (5.72:1).
About this color
#617FE9 is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.163 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.024 away. Black text reads best on it, at 5.72:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.72:1 |
| White text | 3.67:1 |
Values
| HEX | #617FE9 |
| RGB | rgb(97, 127, 233) |
| HSL | hsl(227, 76%, 65%) |
| OKLCH | oklch(62.5% 0.163 269.4) |
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 #617FE9 | 3.67:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #617FE9 | 5.72:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #617FE9 text on white | 3.67:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #617FE9 text on black | 5.72:1 | AA | Lc -37.6 | 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F7
oklch(88.6% 0.043 268.2)
-
Step 300
300
#ACBFF5
oklch(80.9% 0.079 269.5)
-
Step 400
400
#819CF0
oklch(70.7% 0.127 269.4)
-
Step 500
500 (this color)
#617FE9
oklch(62.5% 0.163 269.4)
-
Step 600
600
#4B67D9
oklch(55.5% 0.177 269.4)
-
Step 700
700
#3D55BC
oklch(49% 0.164 269.5)
-
Step 800
800
#324698
oklch(42.6% 0.136 269.5)
-
Step 900
900
#2B3C79
oklch(37.7% 0.106 269.1)
-
Step 950
950
#192447
oklch(27.1% 0.067 268.5)
#617FE9 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) | #4D8CED | 0.036 |
| Deuteranopia (no green cones) | #3980E7 | 0.038 |
| Tritanopia (no blue cones) | #0097A9 | 0.143 |
| Achromatopsia (no color) | #858585 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #617FE9
#617FE9
oklch(62.5% 0.163 269.4)
- #A68300
#A68300
oklch(62.6% 0.128 89.8)
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 #617FE9, closest first.
No curated palette has a color within ΔE 0.04 of #617FE9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.024
- Cornflower #6A79F7 ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.046
- Chefchaouen Blue #4895EF ΔE 0.057
- Cornflower Blue #6495ED ΔE 0.058
- Clear Blue #247AFD ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.062
- Dodger Blue #1E90FF ΔE 0.062
Use #617FE9 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.