#234F40
Closest named color: Dark Blue Green (#005249). oklch(39.1% 0.056 168.7), rgb(35, 79, 64).
Aa
White text reads best on this color (9.27:1).
About this color
#234F40 is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.056 and its hue 169°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.021 away. White text reads best on it, at 9.27:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.056) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #234F40 |
| RGB | rgb(35, 79, 64) |
| HSL | hsl(160, 39%, 22%) |
| OKLCH | oklch(39.1% 0.056 168.7) |
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 #234F40 | 9.27:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #234F40 | 2.26:1 | Fails | Lc 12.7 | Not readable |
| #234F40 text on white | 9.27:1 | AAA | Lc 91.3 | Preferred for body text |
| #234F40 text on black | 2.26:1 | Fails | Lc -11.1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3EDE8
oklch(93.7% 0.013 164.8)
-
Step 200
200
#CBDED6
oklch(88.4% 0.023 168.7)
-
Step 300
300
#A7CABC
oklch(80.9% 0.042 169)
-
Step 400
400
#76AE99
oklch(70.6% 0.067 169)
-
Step 500
500
#4F9A80
oklch(63% 0.086 168.7)
-
Step 600
600
#2E856A
oklch(55.7% 0.093 168.9)
-
Step 700
700
#207058
oklch(49.1% 0.086 168.9)
-
Step 800
800
#1D5B48
oklch(42.6% 0.071 169.2)
-
Step 900
900 (this color)
#234F40
oklch(39.1% 0.056 168.7)
-
Step 950
950
#132C23
oklch(27% 0.036 168.1)
#234F40 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) | #4D4A3F | 0.056 |
| Deuteranopia (no green cones) | #464541 | 0.054 |
| Tritanopia (no blue cones) | #124F4B | 0.021 |
| Achromatopsia (no color) | #474747 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234F40
#234F40
oklch(39.1% 0.056 168.7)
- #5C394A
#5C394A
oklch(39.2% 0.055 349.4)
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 #234F40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.030
- Dark Teal #014D4E ΔE 0.032
- Deep Teal #00555A ΔE 0.042
- Evergreen #05472A ΔE 0.048
- Charcoal #264653 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.055
- Pine #2B5D34 ΔE 0.057
Use #234F40 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.