#00476B
Closest named color: Twilight Blue (#0A437A). oklch(37.9% 0.087 239.8), rgb(0, 71, 107).
Aa
White text reads best on this color (9.93:1).
About this color
#00476B is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.087 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.031 away. White text reads best on it, at 9.93:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.11:1 |
| White text | 9.93:1 |
Values
| HEX | #00476B |
| RGB | rgb(0, 71, 107) |
| HSL | hsl(200, 100%, 21%) |
| OKLCH | oklch(37.9% 0.087 239.8) |
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 #00476B | 9.93:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #00476B | 2.11:1 | Fails | Lc 11.4 | Not readable |
| #00476B text on white | 9.93:1 | AAA | Lc 92.5 | Preferred for body text |
| #00476B text on black | 2.11:1 | Fails | Lc -9.9 | Not readable |
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 900.
-
Step 50
50
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C5DDEF
oklch(88.5% 0.036 240.3)
-
Step 300
300
#9BC7E7
oklch(80.9% 0.065 240.2)
-
Step 400
400
#5FA9DB
oklch(70.7% 0.104 240)
-
Step 500
500
#2392D1
oklch(63% 0.133 240.1)
-
Step 600
600
#007BB5
oklch(55.6% 0.127 239.8)
-
Step 700
700
#006799
oklch(49% 0.112 240)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900 (this color)
#00476B
oklch(37.9% 0.087 239.8)
-
Step 950
950
#06293E
oklch(26.8% 0.055 240.1)
#00476B 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) | #35486D | 0.043 |
| Deuteranopia (no green cones) | #273F6A | 0.033 |
| Tritanopia (no blue cones) | #005054 | 0.056 |
| Achromatopsia (no color) | #434343 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00476B
#00476B
oklch(37.9% 0.087 239.8)
- #633504
#633504
oklch(38% 0.087 59.5)
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 #00476B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.036
- Charcoal #264653 ΔE 0.045
- Marine Blue #01386A ΔE 0.047
- Light Navy #155084 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.057
- Dark Teal #014D4E ΔE 0.060
Use #00476B 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.