#234A42
Closest named color: Dark Teal (#014D4E). oklch(37.8% 0.047 178.6), rgb(35, 74, 66).
Aa
White text reads best on this color (9.86:1).
About this color
#234A42 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.047 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.025 away. White text reads best on it, at 9.86:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.12:1 |
| White text | 9.86:1 |
Values
| HEX | #234A42 |
| RGB | rgb(35, 74, 66) |
| HSL | hsl(168, 36%, 21%) |
| OKLCH | oklch(37.8% 0.047 178.6) |
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 #234A42 | 9.86:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #234A42 | 2.12:1 | Fails | Lc 11.2 | Not readable |
| #234A42 text on white | 9.86:1 | AAA | Lc 92.8 | Preferred for body text |
| #234A42 text on black | 2.12:1 | Fails | Lc -9.7 | 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
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A9C8C1
oklch(80.8% 0.035 180.2)
-
Step 400
400
#7AACA1
oklch(70.6% 0.056 179.4)
-
Step 500
500
#56988A
oklch(63.1% 0.071 178.6)
-
Step 600
600
#378274
oklch(55.5% 0.078 179.2)
-
Step 700
700
#296E61
oklch(49.1% 0.072 178.6)
-
Step 800
800
#245A4F
oklch(42.8% 0.06 177.8)
-
Step 900
900 (this color)
#234A42
oklch(37.8% 0.047 178.6)
-
Step 950
950
#152B27
oklch(26.9% 0.029 181)
#234A42 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) | #474642 | 0.049 |
| Deuteranopia (no green cones) | #414143 | 0.048 |
| Tritanopia (no blue cones) | #124B48 | 0.015 |
| Achromatopsia (no color) | #434343 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234A42
#234A42
oklch(37.8% 0.047 178.6)
- #563741
#563741
oklch(37.7% 0.047 358.6)
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 #234A42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.025
- Dark Blue Green #005249 ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.030
- Charcoal #264653 ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.042
- Deep Teal #00555A ΔE 0.045
- Evergreen #05472A ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.051
Use #234A42 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.