#57789E
Closest named color: Stormy Blue (#507B9C). oklch(56.3% 0.07 252.5), rgb(87, 120, 158).
Aa
Black text reads best on this color (4.58:1).
About this color
#57789E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.070 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.012 away. Black text reads best on it, at 4.58:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #57789E |
| RGB | rgb(87, 120, 158) |
| HSL | hsl(212, 29%, 48%) |
| OKLCH | oklch(56.3% 0.07 252.5) |
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 #57789E | 4.57:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #57789E | 4.58:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #57789E text on white | 4.57:1 | AA | Lc 71.7 | Content text, not long reading |
| #57789E text on black | 4.58:1 | AA | Lc -29.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B3C2D5
oklch(80.9% 0.032 254.3)
-
Step 400
400
#8AA3C0
oklch(70.6% 0.051 252.3)
-
Step 500
500
#6D8CB0
oklch(63% 0.065 252.6)
-
Step 600
600 (this color)
#57789E
oklch(56.3% 0.07 252.5)
-
Step 700
700
#456385
oklch(49.1% 0.065 252.2)
-
Step 800
800
#39516C
oklch(42.7% 0.054 252)
-
Step 900
900
#314358
oklch(37.7% 0.043 252.7)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#57789E 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) | #6979A0 | 0.024 |
| Deuteranopia (no green cones) | #61729D | 0.020 |
| Tritanopia (no blue cones) | #3B8185 | 0.062 |
| Achromatopsia (no color) | #757575 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57789E
#57789E
oklch(56.3% 0.07 252.5)
- #8F6F45
#8F6F45
oklch(56.3% 0.071 73.1)
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 #57789E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.012
- Dull Blue #49759C ΔE 0.019
- Cerulean #457B9D ΔE 0.021
- Metallic Blue #4F738E ΔE 0.029
- Grey Blue #647D8E ΔE 0.036
- Off Blue #5684AE ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.038
- Muted Blue #3B719F ΔE 0.039
Use #57789E 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.