#042C35
Closest named color: Dark (#1B2431). oklch(27.1% 0.045 216.7), rgb(4, 44, 53).
Aa
White text reads best on this color (14.82:1).
About this color
#042C35 is a dark, muted teal or cyan. In OKLCH its lightness is 27%, its chroma 0.045 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.033 away. White text reads best on it, at 14.82:1.
| Hue family | Teals and cyans |
| Lightness | dark (27%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.41:1 |
| White text | 14.82:1 |
Values
| HEX | #042C35 |
| RGB | rgb(4, 44, 53) |
| HSL | hsl(191, 86%, 11%) |
| OKLCH | oklch(27.1% 0.045 216.7) |
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 #042C35 | 14.82:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #042C35 | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #042C35 text on white | 14.82:1 | AAA | Lc 101.4 | Preferred for body text |
| #042C35 text on black | 1.41:1 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF1
oklch(93.7% 0.016 216.7)
-
Step 200
200
#C4DEE6
oklch(88.4% 0.03 218.2)
-
Step 300
300
#9ACAD7
oklch(81% 0.053 216.2)
-
Step 400
400
#5CAEC3
oklch(70.7% 0.085 216.5)
-
Step 500
500
#1399B4
oklch(63.1% 0.109 216.7)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950 (this color)
#042C35
oklch(27.1% 0.045 216.7)
#042C35 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) | #262A35 | 0.039 |
| Deuteranopia (no green cones) | #1F2635 | 0.034 |
| Tritanopia (no blue cones) | #002F2F | 0.018 |
| Achromatopsia (no color) | #282828 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #042C35
#042C35
oklch(27.1% 0.045 216.7)
- #3A1E17
#3A1E17
oklch(27.1% 0.046 34.9)
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 #042C35, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.034
- Jet #212529 ΔE 0.039
- Gunmetal #293241 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.055
- Rich Black #0D1B2A ΔE 0.059
- Midnight Green #073B4C ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.070
Use #042C35 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.