#477A90
Closest named color: Cerulean (#457B9D). oklch(55.3% 0.065 227.6), rgb(71, 122, 144).
Aa
White text reads best on this color (4.71:1).
About this color
#477A90 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 55%, its chroma 0.065 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.020 away. White text reads best on it, at 4.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #477A90 |
| RGB | rgb(71, 122, 144) |
| HSL | hsl(198, 34%, 42%) |
| OKLCH | oklch(55.3% 0.065 227.6) |
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 #477A90 | 4.71:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #477A90 | 4.45:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #477A90 text on white | 4.71:1 | AA | Lc 72.6 | Content text, not long reading |
| #477A90 text on black | 4.45:1 | AA large text | Lc -29.1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AEC5CF
oklch(80.9% 0.029 225.8)
-
Step 400
400
#83A7B8
oklch(70.8% 0.047 228.4)
-
Step 500
500
#6291A6
oklch(63.1% 0.06 227.7)
-
Step 600
600 (this color)
#477A90
oklch(55.3% 0.065 227.6)
-
Step 700
700
#39687B
oklch(49.2% 0.06 226.3)
-
Step 800
800
#305564
oklch(42.8% 0.049 226.1)
-
Step 900
900
#2B4652
oklch(37.8% 0.039 227.9)
-
Step 950
950
#192930
oklch(27% 0.025 227.2)
#477A90 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) | #6E7891 | 0.048 |
| Deuteranopia (no green cones) | #647090 | 0.043 |
| Tritanopia (no blue cones) | #208081 | 0.045 |
| Achromatopsia (no color) | #737373 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #477A90
#477A90
oklch(55.3% 0.065 227.6)
- #926751
#926751
oklch(55.3% 0.065 48)
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 #477A90, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.020
- Metallic Blue #4F738E ΔE 0.021
- Stormy Blue #507B9C ΔE 0.022
- Dull Blue #49759C ΔE 0.028
- Grey Blue #647D8E ΔE 0.036
- Ocean #017B92 ΔE 0.038
- Muted Blue #3B719F ΔE 0.043
- Battleship Grey #6B7C85 ΔE 0.046
Use #477A90 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.