#577190
Closest named color: Metallic Blue (#4F738E). oklch(54% 0.058 253.2), rgb(87, 113, 144).
Aa
White text reads best on this color (5.03:1).
About this color
#577190 is a medium-dark, muted blue. In OKLCH its lightness is 54%, its chroma 0.058 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.012 away. White text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #577190 |
| RGB | rgb(87, 113, 144) |
| HSL | hsl(213, 25%, 45%) |
| OKLCH | oklch(54% 0.058 253.2) |
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 #577190 | 5.03:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #577190 | 4.17:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #577190 text on white | 5.03:1 | AA | Lc 74.8 | Content text, not long reading |
| #577190 text on black | 4.17:1 | AA large text | Lc -26.9 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D3DAE3
oklch(88.6% 0.015 254.6)
-
Step 300
300
#B5C2D1
oklch(80.9% 0.026 251.9)
-
Step 400
400
#8FA3BA
oklch(70.8% 0.041 252)
-
Step 500
500
#738CA9
oklch(63.1% 0.052 252.4)
-
Step 600
600 (this color)
#577190
oklch(54% 0.058 253.2)
-
Step 700
700
#4B637F
oklch(49.2% 0.054 252.7)
-
Step 800
800
#3E5167
oklch(42.8% 0.044 252.5)
-
Step 900
900
#354354
oklch(37.8% 0.034 253.6)
-
Step 950
950
#1F2731
oklch(27% 0.022 254.2)
#577190 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) | #657291 | 0.019 |
| Deuteranopia (no green cones) | #5F6C8F | 0.017 |
| Tritanopia (no blue cones) | #44787B | 0.051 |
| Achromatopsia (no color) | #6F6F6F | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #577190
#577190
oklch(54% 0.058 253.2)
- #836A49
#836A49
oklch(54% 0.057 73.8)
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 #577190, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.012
- Dull Blue #49759C ΔE 0.023
- Stormy Blue #507B9C ΔE 0.030
- Cerulean #457B9D ΔE 0.033
- Muted Blue #3B719F ΔE 0.037
- Grey Blue #647D8E ΔE 0.042
- Flat Blue #3C73A8 ΔE 0.045
- Battleship Gray #6C757D ΔE 0.045
Use #577190 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.