#015E63
Closest named color: Petrol (#005F6A). oklch(43.9% 0.074 201.2), rgb(1, 94, 99).
Aa
White text reads best on this color (7.54:1).
About this color
#015E63 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.074 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.011 away. White text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #015E63 |
| RGB | rgb(1, 94, 99) |
| HSL | hsl(183, 98%, 20%) |
| OKLCH | oklch(43.9% 0.074 201.2) |
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 #015E63 | 7.54:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #015E63 | 2.78:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #015E63 text on white | 7.54:1 | AAA | Lc 85.7 | Fine for body text |
| #015E63 text on black | 2.78:1 | Fails | Lc -16.3 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1EDED
oklch(93.7% 0.013 196.9)
-
Step 200
200
#C8DEE0
oklch(88.5% 0.024 203.4)
-
Step 300
300
#A1CACC
oklch(81% 0.043 200)
-
Step 400
400
#6AAEB2
oklch(70.7% 0.069 200.5)
-
Step 500
500
#3999A0
oklch(63% 0.089 202)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800 (this color)
#015E63
oklch(43.9% 0.074 201.2)
-
Step 900
900
#0F4B4E
oklch(37.8% 0.058 200)
-
Step 950
950
#0C2C2E
oklch(27.1% 0.037 201)
#015E63 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) | #565963 | 0.075 |
| Deuteranopia (no green cones) | #4A5163 | 0.069 |
| Tritanopia (no blue cones) | #00625F | 0.017 |
| Achromatopsia (no color) | #545454 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015E63
#015E63
oklch(43.9% 0.074 201.2)
- #764140
#764140
oklch(44% 0.074 21.6)
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 #015E63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.011
- Deep Teal #00555A ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.032
- Dark Aqua #05696B ΔE 0.035
- Dark Blue Green #005249 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.051
- Dark Teal #014D4E ΔE 0.059
- YInMn Blue #415A77 ΔE 0.063
Use #015E63 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.