#477999
Closest named color: Cerulean (#457B9D). oklch(55.4% 0.074 238.2), rgb(71, 121, 153).
Aa
White text reads best on this color (4.70:1).
About this color
#477999 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.074 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.007 away. White text reads best on it, at 4.70:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.46:1 |
| White text | 4.70:1 |
Values
| HEX | #477999 |
| RGB | rgb(71, 121, 153) |
| HSL | hsl(203, 37%, 44%) |
| OKLCH | oklch(55.4% 0.074 238.2) |
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 #477999 | 4.70:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #477999 | 4.46:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #477999 text on white | 4.70:1 | AA | Lc 72.6 | Content text, not long reading |
| #477999 text on black | 4.46:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CEDBE4
oklch(88.4% 0.019 237.8)
-
Step 300
300
#AEC4D4
oklch(80.9% 0.033 239.5)
-
Step 400
400
#82A6BE
oklch(70.7% 0.053 237.7)
-
Step 500
500
#6290AE
oklch(63.2% 0.067 237.8)
-
Step 600
600 (this color)
#477999
oklch(55.4% 0.074 238.2)
-
Step 700
700
#396683
oklch(49.1% 0.068 238.5)
-
Step 800
800
#2F536B
oklch(42.6% 0.058 239.3)
-
Step 900
900
#2A4556
oklch(37.6% 0.044 237.2)
-
Step 950
950
#192933
oklch(27.1% 0.028 236.7)
#477999 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) | #6B789B | 0.044 |
| Deuteranopia (no green cones) | #5F7098 | 0.036 |
| Tritanopia (no blue cones) | #158184 | 0.058 |
| Achromatopsia (no color) | #747474 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #477999
#477999
oklch(55.4% 0.074 238.2)
- #936846
#936846
oklch(55.4% 0.073 58.8)
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 #477999, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.007
- Stormy Blue #507B9C ΔE 0.013
- Dull Blue #49759C ΔE 0.014
- Metallic Blue #4F738E ΔE 0.021
- Muted Blue #3B719F ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.035
- Grey Blue #647D8E ΔE 0.041
- Ocean #017B92 ΔE 0.041
Use #477999 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.