#616591
Closest named color: Dusky Blue (#475F94). oklch(52.1% 0.069 279.7), rgb(97, 101, 145).
Aa
White text reads best on this color (5.55:1).
About this color
#616591 is a medium-dark, muted blue. In OKLCH its lightness is 52%, its chroma 0.069 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.042 away. White text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.77:1 |
| White text | 5.55:1 |
Values
| HEX | #616591 |
| RGB | rgb(97, 101, 145) |
| HSL | hsl(235, 20%, 47%) |
| OKLCH | oklch(52.1% 0.069 279.7) |
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 #616591 | 5.55:1 | AA | Lc -83.0 | Fine for body text |
| Black text on #616591 | 3.77:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #616591 text on white | 5.55:1 | AA | Lc 77.7 | Fine for body text |
| #616591 text on black | 3.77:1 | AA large text | Lc -24.0 | 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 700.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D6D8E6
oklch(88.5% 0.019 279.5)
-
Step 300
300
#BCBFD7
oklch(81% 0.034 280)
-
Step 400
400
#999EC2
oklch(70.8% 0.053 278.8)
-
Step 500
500
#8185B3
oklch(63.1% 0.069 280.4)
-
Step 600
600
#6A6F9F
oklch(55.7% 0.075 279.1)
-
Step 700
700 (this color)
#616591
oklch(52.1% 0.069 279.7)
-
Step 800
800
#484C6E
oklch(42.8% 0.057 278.5)
-
Step 900
900
#3D3F59
oklch(37.7% 0.044 280.6)
-
Step 950
950
#232534
oklch(26.9% 0.028 278.4)
#616591 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) | #586A93 | 0.017 |
| Deuteranopia (no green cones) | #556790 | 0.017 |
| Tritanopia (no blue cones) | #546D75 | 0.060 |
| Achromatopsia (no color) | #686868 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #616591
#616591
oklch(52.1% 0.069 279.7)
- #736A39
#736A39
oklch(52.1% 0.069 99.1)
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 #616591, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.042
- Metallic Blue #4F738E ΔE 0.047
- Dull Blue #49759C ΔE 0.050
- Denim #3B638C ΔE 0.051
- Muted Blue #3B719F ΔE 0.053
- Muted Purple #805B87 ΔE 0.054
- Dusty Purple #825F87 ΔE 0.054
- French Blue #436BAD ΔE 0.055
Use #616591 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.