#617CCE
Closest named color: Soft Blue (#6488EA). oklch(60.3% 0.129 268.6), rgb(97, 124, 206).
Aa
Black text reads best on this color (5.28:1).
About this color
#617CCE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.129 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.049 away. Black text reads best on it, at 5.28:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.28:1 |
| White text | 3.97:1 |
Values
| HEX | #617CCE |
| RGB | rgb(97, 124, 206) |
| HSL | hsl(225, 53%, 59%) |
| OKLCH | oklch(60.3% 0.129 268.6) |
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 #617CCE | 3.97:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #617CCE | 5.28:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #617CCE text on white | 3.97:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #617CCE text on black | 5.28:1 | AA | Lc -34.7 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F1
oklch(88.5% 0.035 267.6)
-
Step 300
300
#AFC0EA
oklch(80.9% 0.062 267.7)
-
Step 400
400
#869EE0
oklch(70.7% 0.101 268.5)
-
Step 500
500 (this color)
#617CCE
oklch(60.3% 0.129 268.6)
-
Step 600
600
#516DC5
oklch(55.7% 0.14 268.3)
-
Step 700
700
#425AAA
oklch(49% 0.131 268.7)
-
Step 800
800
#364A8A
oklch(42.7% 0.109 268.5)
-
Step 900
900
#2F3E6E
oklch(37.6% 0.085 269)
-
Step 950
950
#1C2540
oklch(27.1% 0.052 268.8)
#617CCE 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) | #5B85D1 | 0.024 |
| Deuteranopia (no green cones) | #4E7BCC | 0.022 |
| Tritanopia (no blue cones) | #2B8E9B | 0.116 |
| Achromatopsia (no color) | #808080 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #617CCE
#617CCE
oklch(60.3% 0.129 268.6)
- #9F7C00
#9F7C00
oklch(60.3% 0.123 88.8)
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 #617CCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.049
- Cool Blue #4984B8 ΔE 0.051
- Windows Blue #3778BF ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.055
- Steel Blue #4682B4 ΔE 0.056
- Faded Blue #658CBB ΔE 0.059
- Off Blue #5684AE ΔE 0.061
- Water Blue #0E87CC ΔE 0.061
Use #617CCE 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.