#616EB0
Closest named color: French Blue (#436BAD). oklch(55.7% 0.104 274.1), rgb(97, 110, 176).
Aa
White text reads best on this color (4.81:1).
About this color
#616EB0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.104 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.039 away. White text reads best on it, at 4.81:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.36:1 |
| White text | 4.81:1 |
Values
| HEX | #616EB0 |
| RGB | rgb(97, 110, 176) |
| HSL | hsl(230, 33%, 54%) |
| OKLCH | oklch(55.7% 0.104 274.1) |
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 #616EB0 | 4.81:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #616EB0 | 4.36:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #616EB0 text on white | 4.81:1 | AA | Lc 73.3 | Content text, not long reading |
| #616EB0 text on black | 4.36:1 | AA large text | Lc -28.4 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D3D8EB
oklch(88.4% 0.027 274.1)
-
Step 300
300
#B7BFDF
oklch(80.9% 0.046 274.3)
-
Step 400
400
#929ED0
oklch(70.8% 0.075 273.9)
-
Step 500
500
#7885C3
oklch(63.1% 0.095 274.3)
-
Step 600
600 (this color)
#616EB0
oklch(55.7% 0.104 274.1)
-
Step 700
700
#505B97
oklch(49% 0.097 274.4)
-
Step 800
800
#424B7B
oklch(42.8% 0.08 274.5)
-
Step 900
900
#373F63
oklch(37.7% 0.063 273.5)
-
Step 950
950
#20253A
oklch(27% 0.04 273.2)
#616EB0 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) | #5675B3 | 0.022 |
| Deuteranopia (no green cones) | #4F6FAE | 0.023 |
| Tritanopia (no blue cones) | #467C86 | 0.094 |
| Achromatopsia (no color) | #727272 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616EB0
#616EB0
oklch(55.7% 0.104 274.1)
- #87721C
#87721C
oklch(55.7% 0.104 94.5)
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 #616EB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.046
- Windows Blue #3778BF ΔE 0.050
- Dull Blue #49759C ΔE 0.051
- Muted Blue #3B719F ΔE 0.054
- Stormy Blue #507B9C ΔE 0.058
- Steel Blue #4682B4 ΔE 0.059
- Cerulean #457B9D ΔE 0.061
Use #616EB0 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.