#57799C
Closest named color: Stormy Blue (#507B9C). oklch(56.4% 0.067 249.8), rgb(87, 121, 156).
Aa
Black text reads best on this color (4.62:1).
About this color
#57799C is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.067 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.009 away. Black text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #57799C |
| RGB | rgb(87, 121, 156) |
| HSL | hsl(210, 28%, 48%) |
| OKLCH | oklch(56.4% 0.067 249.8) |
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 #57799C | 4.54:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #57799C | 4.62:1 | AA | Lc 32.6 | Non-text elements, placeholder text |
| #57799C text on white | 4.54:1 | AA | Lc 71.5 | Content text, not long reading |
| #57799C text on black | 4.62:1 | AA | Lc -30.2 | 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 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
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D4
oklch(81% 0.03 248.2)
-
Step 400
400
#8AA4BE
oklch(70.8% 0.048 248.5)
-
Step 500
500
#6D8DAE
oklch(63.2% 0.062 249.6)
-
Step 600
600 (this color)
#57799C
oklch(56.4% 0.067 249.8)
-
Step 700
700
#456483
oklch(49.2% 0.062 249.2)
-
Step 800
800
#39516A
oklch(42.6% 0.051 250.1)
-
Step 900
900
#314356
oklch(37.6% 0.04 250.3)
-
Step 950
950
#1D2833
oklch(27.2% 0.026 248.8)
#57799C 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) | #6B7A9E | 0.027 |
| Deuteranopia (no green cones) | #63739B | 0.021 |
| Tritanopia (no blue cones) | #3C8185 | 0.057 |
| Achromatopsia (no color) | #767676 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57799C
#57799C
oklch(56.4% 0.067 249.8)
- #8F6F49
#8F6F49
oklch(56.4% 0.067 70.6)
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 #57799C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.009
- Cerulean #457B9D ΔE 0.019
- Dull Blue #49759C ΔE 0.021
- Metallic Blue #4F738E ΔE 0.028
- Grey Blue #647D8E ΔE 0.032
- Off Blue #5684AE ΔE 0.036
- Steel Blue #4682B4 ΔE 0.040
- Dusty Blue #5A86AD ΔE 0.041
Use #57799C 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.