#477EA9
Closest named color: Steel Blue (#4682B4). oklch(57.4% 0.089 243.8), rgb(71, 126, 169).
Aa
Black text reads best on this color (4.82:1).
About this color
#477EA9 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.089 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Steel Blue (#4682B4), ΔE 0.018 away. Black text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Steel Blue (#4682B4) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #477EA9 |
| RGB | rgb(71, 126, 169) |
| HSL | hsl(206, 41%, 47%) |
| OKLCH | oklch(57.4% 0.089 243.8) |
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 #477EA9 | 4.35:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #477EA9 | 4.82:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #477EA9 text on white | 4.35:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #477EA9 text on black | 4.82:1 | AA | Lc -31.7 | Non-text elements, placeholder text |
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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4D9
oklch(80.8% 0.04 243.6)
-
Step 400
400
#7FA6C6
oklch(70.8% 0.063 243.6)
-
Step 500
500
#5D8FB7
oklch(63.1% 0.081 243.7)
-
Step 600
600 (this color)
#477EA9
oklch(57.4% 0.089 243.8)
-
Step 700
700
#33658C
oklch(49% 0.083 244.2)
-
Step 800
800
#2B5372
oklch(42.7% 0.069 243.8)
-
Step 900
900
#27455C
oklch(37.8% 0.053 243)
-
Step 950
950
#182836
oklch(27% 0.034 245.9)
#477EA9 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) | #6B7FAB | 0.042 |
| Deuteranopia (no green cones) | #5E75A8 | 0.033 |
| Tritanopia (no blue cones) | #00888D | 0.071 |
| Achromatopsia (no color) | #797979 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #477EA9
#477EA9
oklch(57.4% 0.089 243.8)
- #9D6D3D
#9D6D3D
oklch(57.4% 0.089 64.4)
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 #477EA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel Blue #4682B4 ΔE 0.018
- Cerulean #457B9D ΔE 0.019
- Stormy Blue #507B9C ΔE 0.021
- Off Blue #5684AE ΔE 0.025
- Cool Blue #4984B8 ΔE 0.026
- Dull Blue #49759C ΔE 0.029
- Dusty Blue #5A86AD ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.035
Use #477EA9 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.