#616BBD
Closest named color: French Blue (#436BAD). oklch(55.8% 0.127 276.2), rgb(97, 107, 189).
Aa
White text reads best on this color (4.83:1).
About this color
#616BBD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.127 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.046 away. White text reads best on it, at 4.83:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.34:1 |
| White text | 4.83:1 |
Values
| HEX | #616BBD |
| RGB | rgb(97, 107, 189) |
| HSL | hsl(233, 41%, 56%) |
| OKLCH | oklch(55.8% 0.127 276.2) |
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 #616BBD | 4.83:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #616BBD | 4.34:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #616BBD text on white | 4.83:1 | AA | Lc 73.4 | Content text, not long reading |
| #616BBD text on black | 4.34:1 | AA large text | Lc -28.3 | Dividers and decoration only |
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 600.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8EF
oklch(88.5% 0.032 276)
-
Step 300
300
#B6BEE6
oklch(80.9% 0.057 276.2)
-
Step 400
400
#919CDA
oklch(70.8% 0.092 276.1)
-
Step 500
500
#7782CF
oklch(63.1% 0.116 276.4)
-
Step 600
600 (this color)
#616BBD
oklch(55.8% 0.127 276.2)
-
Step 700
700
#5058A2
oklch(49% 0.118 276.5)
-
Step 800
800
#414984
oklch(42.8% 0.098 275.7)
-
Step 900
900
#373D69
oklch(37.6% 0.075 276.3)
-
Step 950
950
#20243E
oklch(27% 0.049 276)
#616BBD 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) | #4A76C0 | 0.037 |
| Deuteranopia (no green cones) | #426EBB | 0.037 |
| Tritanopia (no blue cones) | #3E7C8B | 0.111 |
| Achromatopsia (no color) | #727272 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616BBD
#616BBD
oklch(55.8% 0.127 276.2)
- #887300
#887300
oklch(55.9% 0.115 96.3)
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 #616BBD, closest first.
No curated palette has a color within ΔE 0.04 of #616BBD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.046
- Dark Periwinkle #665FD1 ΔE 0.046
- Iris #6258C4 ΔE 0.051
- Windows Blue #3778BF ΔE 0.052
- Slate Blue #6A5ACD ΔE 0.053
- Light Indigo #6D5ACF ΔE 0.055
- Flat Blue #3C73A8 ΔE 0.060
- Mid Blue #276AB3 ΔE 0.064
Use #616BBD 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.