#00475B
Closest named color: Charcoal (#264653). oklch(37% 0.07 224.4), rgb(0, 71, 91).
Aa
White text reads best on this color (10.23:1).
About this color
#00475B is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.070 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.027 away. White text reads best on it, at 10.23:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.05:1 |
| White text | 10.23:1 |
Values
| HEX | #00475B |
| RGB | rgb(0, 71, 91) |
| HSL | hsl(193, 100%, 18%) |
| OKLCH | oklch(37% 0.07 224.4) |
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 #00475B | 10.23:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #00475B | 2.05:1 | Fails | Lc 10.7 | Not readable |
| #00475B text on white | 10.23:1 | AAA | Lc 93.3 | Preferred for body text |
| #00475B text on black | 2.05:1 | Fails | Lc -9.2 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE8
oklch(88.6% 0.029 224.7)
-
Step 300
300
#9DC8DA
oklch(80.8% 0.052 225.4)
-
Step 400
400
#62ACC8
oklch(70.7% 0.084 224.6)
-
Step 500
500
#2A97B9
oklch(63.2% 0.106 223.8)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900 (this color)
#00475B
oklch(37% 0.07 224.4)
-
Step 950
950
#082B36
oklch(27% 0.044 223.1)
#00475B 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) | #3C455C | 0.054 |
| Deuteranopia (no green cones) | #313D5B | 0.048 |
| Tritanopia (no blue cones) | #004D4E | 0.035 |
| Achromatopsia (no color) | #414141 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00475B
#00475B
oklch(37% 0.07 224.4)
- #5E331F
#5E331F
oklch(37.1% 0.07 44.9)
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 #00475B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.028
- Dark Teal #014D4E ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.041
- Midnight Green #073B4C ΔE 0.042
- Deep Teal #00555A ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.053
- Dark Blue Green #005249 ΔE 0.056
Use #00475B 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.