#124E66
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.071 229.9), rgb(18, 78, 102).
Aa
White text reads best on this color (9.10:1).
About this color
#124E66 is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.030 away. White text reads best on it, at 9.10:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #124E66 |
| RGB | rgb(18, 78, 102) |
| HSL | hsl(197, 70%, 24%) |
| OKLCH | oklch(39.9% 0.071 229.9) |
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 #124E66 | 9.10:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #124E66 | 2.30:1 | Fails | Lc 13.3 | Not readable |
| #124E66 text on white | 9.10:1 | AAA | Lc 90.6 | Preferred for body text |
| #124E66 text on black | 2.30:1 | Fails | Lc -11.7 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE9
oklch(88.4% 0.03 230.3)
-
Step 300
300
#9EC8DD
oklch(81% 0.053 229.8)
-
Step 400
400
#65ABCC
oklch(70.8% 0.086 230)
-
Step 500
500
#3195BE
oklch(63.1% 0.108 229.8)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900 (this color)
#124E66
oklch(39.9% 0.071 229.9)
-
Step 950
950
#0A2A38
oklch(26.9% 0.045 230.7)
#124E66 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) | #424D67 | 0.049 |
| Deuteranopia (no green cones) | #364566 | 0.041 |
| Tritanopia (no blue cones) | #005556 | 0.042 |
| Achromatopsia (no color) | #484848 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124E66
#124E66
oklch(39.9% 0.071 229.9)
- #663B22
#663B22
oklch(39.9% 0.072 49.8)
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 #124E66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.030
- Deep Teal #00555A ΔE 0.036
- Charcoal #264653 ΔE 0.036
- Dark Teal #014D4E ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Light Navy #155084 ΔE 0.051
- Petrol #005F6A ΔE 0.053
Use #124E66 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.