#03475C
Closest named color: Charcoal (#264653). oklch(37.1% 0.07 226.1), rgb(3, 71, 92).
Aa
White text reads best on this color (10.19:1).
About this color
#03475C is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.070 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.026 away. White text reads best on it, at 10.19:1.
| 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 | 10.19:1 |
Values
| HEX | #03475C |
| RGB | rgb(3, 71, 92) |
| HSL | hsl(194, 94%, 19%) |
| OKLCH | oklch(37.1% 0.07 226.1) |
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 #03475C | 10.19:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #03475C | 2.05:1 | Fails | Lc 10.7 | Not readable |
| #03475C text on white | 10.19:1 | AAA | Lc 93.2 | Preferred for body text |
| #03475C text on black | 2.05:1 | Fails | Lc -9.3 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DEE8
oklch(88.6% 0.029 224.7)
-
Step 300
300
#9DC8DB
oklch(80.8% 0.053 226.7)
-
Step 400
400
#64ACC9
oklch(70.8% 0.084 226.1)
-
Step 500
500
#2D96BB
oklch(63.1% 0.107 226.4)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900 (this color)
#03475C
oklch(37.1% 0.07 226.1)
-
Step 950
950
#092B37
oklch(27.1% 0.044 225.6)
#03475C 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) | #3C455D | 0.052 |
| Deuteranopia (no green cones) | #313E5C | 0.045 |
| Tritanopia (no blue cones) | #004D4E | 0.036 |
| Achromatopsia (no color) | #414141 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03475C
#03475C
oklch(37.1% 0.07 226.1)
- #5E331E
#5E331E
oklch(37.1% 0.07 45.9)
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 #03475C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.026
- Dark Grey Blue #29465B ΔE 0.027
- Dark Teal #014D4E ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.042
- Midnight Green #073B4C ΔE 0.043
- Deep Teal #00555A ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.053
- Twilight Blue #0A437A ΔE 0.057
Use #03475C 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.