#03515D
Closest named color: Deep Teal (#00555A). oklch(40% 0.069 212), rgb(3, 81, 93).
Aa
White text reads best on this color (8.97:1).
About this color
#03515D is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.016 away. White text reads best on it, at 8.97:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.33:1 |
| White text | 8.97:1 |
Values
| HEX | #03515D |
| RGB | rgb(3, 81, 93) |
| HSL | hsl(188, 94%, 19%) |
| OKLCH | oklch(40% 0.069 212) |
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 #03515D | 8.97:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #03515D | 2.33:1 | Fails | Lc 13.8 | Not readable |
| #03515D text on white | 8.97:1 | AAA | Lc 90.2 | Preferred for body text |
| #03515D text on black | 2.33:1 | Fails | Lc -12.1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C5DFE4
oklch(88.6% 0.028 210.5)
-
Step 300
300
#9BCAD4
oklch(80.9% 0.051 212.1)
-
Step 400
400
#5EAEBE
oklch(70.6% 0.082 212.1)
-
Step 500
500
#1A9AAE
oklch(63.1% 0.105 211.6)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900 (this color)
#03515D
oklch(40% 0.069 212)
-
Step 950
950
#052C33
oklch(27.1% 0.043 212.5)
#03515D 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) | #484E5E | 0.063 |
| Deuteranopia (no green cones) | #3D465D | 0.057 |
| Tritanopia (no blue cones) | #005655 | 0.025 |
| Achromatopsia (no color) | #494949 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03515D
#03515D
oklch(40% 0.069 212)
- #673930
#673930
oklch(39.9% 0.068 32)
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 #03515D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.016
- Dark Teal #014D4E ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Blue Green #005249 ΔE 0.036
- Charcoal #264653 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.040
- Petrol #005F6A ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.062
Use #03515D 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.