#00525B
Closest named color: Deep Teal (#00555A). oklch(40.1% 0.069 207.5), rgb(0, 82, 91).
Aa
White text reads best on this color (8.90:1).
About this color
#00525B is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.069 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.011 away. White text reads best on it, at 8.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.35:1 |
| White text | 8.90:1 |
Values
| HEX | #00525B |
| RGB | rgb(0, 82, 91) |
| HSL | hsl(186, 100%, 18%) |
| OKLCH | oklch(40.1% 0.069 207.5) |
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 #00525B | 8.90:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #00525B | 2.35:1 | Fails | Lc 14.1 | Not readable |
| #00525B text on white | 8.90:1 | AAA | Lc 89.9 | Fine for body text |
| #00525B 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
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C4DFE3
oklch(88.5% 0.029 207.4)
-
Step 300
300
#9ACBD2
oklch(81% 0.052 207.1)
-
Step 400
400
#5CAFBB
oklch(70.6% 0.082 207.7)
-
Step 500
500
#129BAA
oklch(63.1% 0.106 207.2)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900 (this color)
#00525B
oklch(40.1% 0.069 207.5)
-
Step 950
950
#042C31
oklch(26.9% 0.043 207.4)
#00525B 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) | #494E5C | 0.066 |
| Deuteranopia (no green cones) | #3E465B | 0.061 |
| Tritanopia (no blue cones) | #005655 | 0.019 |
| Achromatopsia (no color) | #4A4A4A | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00525B
#00525B
oklch(40.1% 0.069 207.5)
- #683933
#683933
oklch(40.1% 0.068 28.2)
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 #00525B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.011
- Dark Teal #014D4E ΔE 0.024
- Dark Blue Green #005249 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.033
- Charcoal #264653 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.044
- Petrol #005F6A ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.063
Use #00525B 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.