#03515E
Closest named color: Deep Teal (#00555A). oklch(40% 0.069 213.4), rgb(3, 81, 94).
Aa
White text reads best on this color (8.96:1).
About this color
#03515E is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.017 away. White text reads best on it, at 8.96:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #03515E |
| RGB | rgb(3, 81, 94) |
| HSL | hsl(189, 94%, 19%) |
| OKLCH | oklch(40% 0.069 213.4) |
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 #03515E | 8.96:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #03515E | 2.34:1 | Fails | Lc 13.9 | Not readable |
| #03515E text on white | 8.96:1 | AAA | Lc 90.1 | Preferred for body text |
| #03515E text on black | 2.34:1 | Fails | Lc -12.2 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C5DFE5
oklch(88.6% 0.029 213.2)
-
Step 300
300
#9BCAD5
oklch(80.9% 0.052 213.7)
-
Step 400
400
#5DAEC0
oklch(70.6% 0.083 213.9)
-
Step 500
500
#199AB0
oklch(63.2% 0.106 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
Step 800
800
#005968
oklch(42.7% 0.075 214.2)
-
Step 900
900 (this color)
#03515E
oklch(40% 0.069 213.4)
-
Step 950
950
#052C33
oklch(27.1% 0.043 212.5)
#03515E 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) | #474E5F | 0.062 |
| Deuteranopia (no green cones) | #3C465E | 0.056 |
| Tritanopia (no blue cones) | #005655 | 0.026 |
| Achromatopsia (no color) | #494949 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03515E
#03515E
oklch(40% 0.069 213.4)
- #68392F
#68392F
oklch(40.1% 0.069 33)
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 #03515E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.017
- Dark Teal #014D4E ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.035
- Charcoal #264653 ΔE 0.037
- Dark Blue Green #005249 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.039
- Petrol #005F6A ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.060
Use #03515E 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.