#042E34
Closest named color: Dark (#1B2431). oklch(27.7% 0.045 209.3), rgb(4, 46, 52).
Aa
White text reads best on this color (14.52:1).
About this color
#042E34 is a dark, muted teal or cyan. In OKLCH its lightness is 28%, its chroma 0.045 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.039 away. White text reads best on it, at 14.52:1.
| Hue family | Teals and cyans |
| Lightness | dark (28%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.44:1 |
| White text | 14.52:1 |
Values
| HEX | #042E34 |
| RGB | rgb(4, 46, 52) |
| HSL | hsl(188, 86%, 11%) |
| OKLCH | oklch(27.7% 0.045 209.3) |
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 #042E34 | 14.52:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #042E34 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #042E34 text on white | 14.52:1 | AAA | Lc 101.1 | Preferred for body text |
| #042E34 text on black | 1.44:1 | 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 950.
-
Step 50
50
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C4DFE4
oklch(88.5% 0.029 210)
-
Step 300
300
#99CBD3
oklch(81% 0.053 208.3)
-
Step 400
400
#5AAFBD
oklch(70.6% 0.085 209.4)
-
Step 500
500
#029BAD
oklch(63.1% 0.109 209.3)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950 (this color)
#042E34
oklch(27.7% 0.045 209.3)
#042E34 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) | #292C34 | 0.043 |
| Deuteranopia (no green cones) | #222734 | 0.039 |
| Tritanopia (no blue cones) | #003130 | 0.015 |
| Achromatopsia (no color) | #292929 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042E34
#042E34
oklch(27.7% 0.045 209.3)
- #3B1F1B
#3B1F1B
oklch(27.6% 0.045 28.9)
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 #042E34, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.040
- Jet #212529 ΔE 0.041
- Gunmetal #293241 ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.056
- Midnight Green #073B4C ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.066
- Rich Black #0D1B2A ΔE 0.066
Use #042E34 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.