#57799F
Closest named color: Stormy Blue (#507B9C). oklch(56.6% 0.071 251.8), rgb(87, 121, 159).
Aa
Black text reads best on this color (4.64:1).
About this color
#57799F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.071 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.011 away. Black text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.64:1 |
| White text | 4.52:1 |
Values
| HEX | #57799F |
| RGB | rgb(87, 121, 159) |
| HSL | hsl(212, 29%, 48%) |
| OKLCH | oklch(56.6% 0.071 251.8) |
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 #57799F | 4.52:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #57799F | 4.64:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #57799F text on white | 4.52:1 | AA | Lc 71.4 | Content text, not long reading |
| #57799F text on black | 4.64:1 | AA | Lc -30.3 | 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
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C2D5
oklch(80.8% 0.032 252.7)
-
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)
#57799F
oklch(56.6% 0.071 251.8)
-
Step 700
700
#446385
oklch(49% 0.066 251.5)
-
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)
#57799F 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) | #6A7AA1 | 0.025 |
| Deuteranopia (no green cones) | #61739E | 0.020 |
| Tritanopia (no blue cones) | #3A8286 | 0.062 |
| Achromatopsia (no color) | #767676 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57799F
#57799F
oklch(56.6% 0.071 251.8)
- #906F46
#906F46
oklch(56.5% 0.071 71.6)
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 #57799F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.011
- Cerulean #457B9D ΔE 0.020
- Dull Blue #49759C ΔE 0.021
- Metallic Blue #4F738E ΔE 0.031
- Off Blue #5684AE ΔE 0.034
- Grey Blue #647D8E ΔE 0.036
- Steel Blue #4682B4 ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.039
Use #57799F 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.