#015259
Closest named color: Deep Teal (#00555A). oklch(40% 0.068 204.8), rgb(1, 82, 89).
Aa
White text reads best on this color (8.92:1).
About this color
#015259 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.068 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.010 away. White text reads best on it, at 8.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #015259 |
| RGB | rgb(1, 82, 89) |
| HSL | hsl(185, 98%, 18%) |
| OKLCH | oklch(40% 0.068 204.8) |
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 #015259 | 8.92:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #015259 | 2.35:1 | Fails | Lc 14.0 | Not readable |
| #015259 text on white | 8.92:1 | AAA | Lc 90.0 | Fine for body text |
| #015259 text on black | 2.35:1 | Fails | Lc -12.3 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C5DFE2
oklch(88.5% 0.028 205.1)
-
Step 300
300
#9ACBD0
oklch(80.9% 0.052 204)
-
Step 400
400
#5DB0B9
oklch(70.8% 0.082 204.7)
-
Step 500
500
#159BA7
oklch(63.1% 0.104 204.8)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900 (this color)
#015259
oklch(40% 0.068 204.8)
-
Step 950
950
#042C30
oklch(26.9% 0.043 205)
#015259 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) | #4A4E59 | 0.067 |
| Deuteranopia (no green cones) | #3F4659 | 0.062 |
| Tritanopia (no blue cones) | #005654 | 0.018 |
| Achromatopsia (no color) | #4A4A4A | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015259
#015259
oklch(40% 0.068 204.8)
- #683835
#683835
oklch(40% 0.069 24.4)
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 #015259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.010
- Dark Teal #014D4E ΔE 0.022
- Dark Blue Green #005249 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.031
- Charcoal #264653 ΔE 0.040
- Petrol #005F6A ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.045
- Dark Green Blue #1F6357 ΔE 0.062
Use #015259 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.