#023749
Closest named color: Midnight Green (#073B4C). oklch(31.5% 0.06 227.5), rgb(2, 55, 73).
Aa
White text reads best on this color (12.76:1).
About this color
#023749 is a dark, muted teal or cyan. In OKLCH its lightness is 31%, its chroma 0.060 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.015 away. White text reads best on it, at 12.76:1.
| Hue family | Teals and cyans |
| Lightness | dark (31%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.64:1 |
| White text | 12.76:1 |
Values
| HEX | #023749 |
| RGB | rgb(2, 55, 73) |
| HSL | hsl(195, 95%, 15%) |
| OKLCH | oklch(31.5% 0.06 227.5) |
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 #023749 | 12.76:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #023749 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #023749 text on white | 12.76:1 | AAA | Lc 98.5 | Preferred for body text |
| #023749 text on black | 1.64:1 | 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
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DCEDF5
oklch(93.6% 0.021 227.5)
-
Step 200
200
#BFDFEE
oklch(88.5% 0.04 227.8)
-
Step 300
300
#90CAE5
oklch(80.9% 0.071 228.6)
-
Step 400
400
#43AED7
oklch(70.6% 0.113 227.3)
-
Step 500
500
#0097C3
oklch(63.1% 0.123 227.5)
-
Step 600
600
#007FA4
oklch(55.6% 0.108 227.1)
-
Step 700
700
#006B8B
oklch(49.2% 0.095 227.3)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900
#004960
oklch(37.8% 0.073 227.3)
-
Step 950
950 (this color)
#023749
oklch(31.5% 0.06 227.5)
#023749 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) | #2D364A | 0.043 |
| Deuteranopia (no green cones) | #243049 | 0.036 |
| Tritanopia (no blue cones) | #003C3D | 0.032 |
| Achromatopsia (no color) | #323232 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #023749
#023749
oklch(31.5% 0.06 227.5)
- #4A2715
#4A2715
oklch(31.5% 0.06 46.9)
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 #023749, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.015
- Dark Blue Grey #1F3B4D ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.036
- Gunmetal #293241 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.048
- Marine #042E60 ΔE 0.055
- Onyx #343A40 ΔE 0.056
- Oxford Blue #1B263B ΔE 0.057
Use #023749 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.