#125657
Closest named color: Deep Teal (#00555A). oklch(41.4% 0.064 196.5), rgb(18, 86, 87).
Aa
White text reads best on this color (8.41:1).
About this color
#125657 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.064 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.009 away. White text reads best on it, at 8.41:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.49:1 |
| White text | 8.41:1 |
Values
| HEX | #125657 |
| RGB | rgb(18, 86, 87) |
| HSL | hsl(181, 66%, 21%) |
| OKLCH | oklch(41.4% 0.064 196.5) |
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 #125657 | 8.41:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #125657 | 2.49:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #125657 text on white | 8.41:1 | AAA | Lc 88.7 | Fine for body text |
| #125657 text on black | 2.49:1 | Fails | Lc -13.5 | 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 800.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDE
oklch(88.6% 0.021 196.8)
-
Step 300
300
#A5C9C9
oklch(81% 0.038 196.4)
-
Step 400
400
#73ADAD
oklch(70.8% 0.06 195.9)
-
Step 500
500
#4A9899
oklch(63.1% 0.077 196.5)
-
Step 600
600
#268284
oklch(55.6% 0.083 197.2)
-
Step 700
700
#166E6F
oklch(49.1% 0.078 196.1)
-
Step 800
800 (this color)
#125657
oklch(41.4% 0.064 196.5)
-
Step 900
900
#1C4A4A
oklch(37.8% 0.05 195.3)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#125657 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) | #505157 | 0.067 |
| Deuteranopia (no green cones) | #464A57 | 0.062 |
| Tritanopia (no blue cones) | #005956 | 0.012 |
| Achromatopsia (no color) | #4D4D4D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #125657
#125657
oklch(41.4% 0.064 196.5)
- #6A3C3F
#6A3C3F
oklch(41.3% 0.065 16.1)
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 #125657, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.009
- Dark Blue Green #005249 ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.029
- Dark Teal #014D4E ΔE 0.033
- Petrol #005F6A ΔE 0.036
- Dark Green Blue #1F6357 ΔE 0.045
- Charcoal #264653 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.056
Use #125657 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.