#477AA3
Closest named color: Cerulean (#457B9D). oklch(56.1% 0.084 244.4), rgb(71, 122, 163).
Aa
White text reads best on this color (4.58:1).
About this color
#477AA3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.084 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.011 away. White text reads best on it, at 4.58:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #477AA3 |
| RGB | rgb(71, 122, 163) |
| HSL | hsl(207, 39%, 46%) |
| OKLCH | oklch(56.1% 0.084 244.4) |
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 #477AA3 | 4.58:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #477AA3 | 4.58:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #477AA3 text on white | 4.58:1 | AA | Lc 71.7 | Content text, not long reading |
| #477AA3 text on black | 4.58:1 | AA | Lc -30.0 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE6
oklch(88.5% 0.021 243.4)
-
Step 300
300
#ADC4D8
oklch(80.9% 0.038 244.5)
-
Step 400
400
#81A5C4
oklch(70.6% 0.06 244.8)
-
Step 500
500
#608FB5
oklch(63.1% 0.077 243.8)
-
Step 600
600 (this color)
#477AA3
oklch(56.1% 0.084 244.4)
-
Step 700
700
#37658A
oklch(49.1% 0.078 244.6)
-
Step 800
800
#2E5370
oklch(42.8% 0.064 243.8)
-
Step 900
900
#29445B
oklch(37.6% 0.052 245.5)
-
Step 950
950
#192835
oklch(27% 0.032 245.5)
#477AA3 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) | #687BA5 | 0.039 |
| Deuteranopia (no green cones) | #5C71A2 | 0.032 |
| Tritanopia (no blue cones) | #008488 | 0.071 |
| Achromatopsia (no color) | #757575 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #477AA3
#477AA3
oklch(56.1% 0.084 244.4)
- #976A3D
#976A3D
oklch(56.1% 0.084 64.6)
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 #477AA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.011
- Stormy Blue #507B9C ΔE 0.015
- Dull Blue #49759C ΔE 0.016
- Flat Blue #3C73A8 ΔE 0.027
- Muted Blue #3B719F ΔE 0.030
- Steel Blue #4682B4 ΔE 0.031
- Metallic Blue #4F738E ΔE 0.034
- Off Blue #5684AE ΔE 0.037
Use #477AA3 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.