#57778F
Closest named color: Metallic Blue (#4F738E). oklch(55.4% 0.052 241.3), rgb(87, 119, 143).
Aa
White text reads best on this color (4.72:1).
About this color
#57778F is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.052 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.016 away. White text reads best on it, at 4.72:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #57778F |
| RGB | rgb(87, 119, 143) |
| HSL | hsl(206, 24%, 45%) |
| OKLCH | oklch(55.4% 0.052 241.3) |
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 #57778F | 4.72:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #57778F | 4.44:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #57778F text on white | 4.72:1 | AA | Lc 72.8 | Content text, not long reading |
| #57778F text on black | 4.44:1 | AA large text | Lc -28.9 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B4C3CF
oklch(80.9% 0.024 242)
-
Step 400
400
#8CA4B6
oklch(70.6% 0.038 240.5)
-
Step 500
500
#708EA4
oklch(63.2% 0.047 240.3)
-
Step 600
600 (this color)
#57778F
oklch(55.4% 0.052 241.3)
-
Step 700
700
#48657A
oklch(49.2% 0.048 240.4)
-
Step 800
800
#3B5263
oklch(42.7% 0.04 240.9)
-
Step 900
900
#334451
oklch(37.7% 0.031 241.6)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#57778F 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) | #6D7790 | 0.029 |
| Deuteranopia (no green cones) | #65718F | 0.024 |
| Tritanopia (no blue cones) | #437D7F | 0.042 |
| Achromatopsia (no color) | #737373 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57778F
#57778F
oklch(55.4% 0.052 241.3)
- #8A6C53
#8A6C53
oklch(55.4% 0.053 61.2)
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 #57778F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.016
- Stormy Blue #507B9C ΔE 0.021
- Grey Blue #647D8E ΔE 0.026
- Cerulean #457B9D ΔE 0.027
- Dull Blue #49759C ΔE 0.027
- Battleship Grey #6B7C85 ΔE 0.036
- Battleship Gray #6C757D ΔE 0.036
- Slate Gray #708090 ΔE 0.044
Use #57778F 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.