#124243
Closest named color: Midnight Green (#073B4C). oklch(34.8% 0.05 197.1), rgb(18, 66, 67).
Aa
White text reads best on this color (11.13:1).
About this color
#124243 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.050 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.034 away. White text reads best on it, at 11.13:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.88:1 |
| White text | 11.13:1 |
Values
| HEX | #124243 |
| RGB | rgb(18, 66, 67) |
| HSL | hsl(181, 58%, 17%) |
| OKLCH | oklch(34.8% 0.05 197.1) |
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 #124243 | 11.13:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #124243 | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #124243 text on white | 11.13:1 | AAA | Lc 95.5 | Preferred for body text |
| #124243 text on black | 1.88:1 | Fails | Lc 0.0 | 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
#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
#258284
oklch(55.5% 0.084 197.1)
-
Step 700
700
#156E70
oklch(49.1% 0.078 197.3)
-
Step 800
800
#165A5B
oklch(42.8% 0.065 196.5)
-
Step 900
900 (this color)
#124243
oklch(34.8% 0.05 197.1)
-
Step 950
950
#112B2C
oklch(26.9% 0.032 198.8)
#124243 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) | #3D3F43 | 0.052 |
| Deuteranopia (no green cones) | #363943 | 0.049 |
| Tritanopia (no blue cones) | #004442 | 0.011 |
| Achromatopsia (no color) | #3B3B3B | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124243
#124243
oklch(34.8% 0.05 197.1)
- #512F30
#512F30
oklch(34.8% 0.05 18)
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 #124243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.036
- Dark Teal #014D4E ΔE 0.036
- Charcoal #264653 ΔE 0.037
- Onyx #343A40 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.050
- Dark Blue Green #005249 ΔE 0.052
Use #124243 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.