#042735
Closest named color: Dark (#1B2431). oklch(25.6% 0.047 229.4), rgb(4, 39, 53).
Aa
White text reads best on this color (15.59:1).
About this color
#042735 is a dark, muted teal or cyan. In OKLCH its lightness is 26%, its chroma 0.047 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.026 away. White text reads best on it, at 15.59:1.
| Hue family | Teals and cyans |
| Lightness | dark (26%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.34:1 |
| White text | 15.59:1 |
Values
| HEX | #042735 |
| RGB | rgb(4, 39, 53) |
| HSL | hsl(197, 86%, 11%) |
| OKLCH | oklch(25.6% 0.047 229.4) |
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 #042735 | 15.59:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #042735 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #042735 text on white | 15.59:1 | AAA | Lc 102.3 | Preferred for body text |
| #042735 text on black | 1.34:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C5DEEA
oklch(88.6% 0.031 228.2)
-
Step 300
300
#9CC8DE
oklch(80.9% 0.056 229.9)
-
Step 400
400
#62ABCD
oklch(70.7% 0.088 229.8)
-
Step 500
500
#2996C0
oklch(63.2% 0.113 229.1)
-
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
#024861
oklch(37.6% 0.074 230.1)
-
Step 950
950 (this color)
#042735
oklch(25.6% 0.047 229.4)
#042735 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) | #202636 | 0.033 |
| Deuteranopia (no green cones) | #192235 | 0.027 |
| Tritanopia (no blue cones) | #002B2C | 0.026 |
| Achromatopsia (no color) | #242424 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042735
#042735
oklch(25.6% 0.047 229.4)
- #351C0D
#351C0D
oklch(25.7% 0.047 50.4)
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 #042735, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.026
- Oxford Blue #1B263B ΔE 0.029
- Jet #212529 ΔE 0.038
- Rich Black #0D1B2A ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.065
- Midnight Green #073B4C ΔE 0.074
- Prussian Blue #1D3557 ΔE 0.079
Use #042735 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.