#124E5B
Closest named color: Deep Teal (#00555A). oklch(39.3% 0.062 215.8), rgb(18, 78, 91).
Aa
White text reads best on this color (9.26:1).
About this color
#124E5B is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.062 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.024 away. White text reads best on it, at 9.26:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #124E5B |
| RGB | rgb(18, 78, 91) |
| HSL | hsl(191, 67%, 21%) |
| OKLCH | oklch(39.3% 0.062 215.8) |
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 #124E5B | 9.26:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #124E5B | 2.26:1 | Fails | Lc 12.9 | Not readable |
| #124E5B text on white | 9.26:1 | AAA | Lc 91.1 | Preferred for body text |
| #124E5B text on black | 2.26:1 | Fails | Lc -11.3 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#9FC9D4
oklch(80.9% 0.047 215.5)
-
Step 400
400
#67ADBE
oklch(70.8% 0.075 215.1)
-
Step 500
500
#3498AE
oklch(63.2% 0.095 215.4)
-
Step 600
600
#008198
oklch(55.6% 0.099 216.1)
-
Step 700
700
#006D80
oklch(49.2% 0.087 215.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900 (this color)
#124E5B
oklch(39.3% 0.062 215.8)
-
Step 950
950
#0B2B33
oklch(27% 0.039 217.4)
#124E5B 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) | #454B5C | 0.055 |
| Deuteranopia (no green cones) | #3B445B | 0.049 |
| Tritanopia (no blue cones) | #005352 | 0.027 |
| Achromatopsia (no color) | #474747 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124E5B
#124E5B
oklch(39.3% 0.062 215.8)
- #63392E
#63392E
oklch(39.3% 0.063 35.5)
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 #124E5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.024
- Dark Teal #014D4E ΔE 0.025
- Charcoal #264653 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Blue Green #005249 ΔE 0.039
- Petrol #005F6A ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.060
Use #124E5B 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.