#103C39
Closest named color: Midnight Green (#073B4C). oklch(32.6% 0.048 188.7), rgb(16, 60, 57).
Aa
White text reads best on this color (12.15:1).
About this color
#103C39 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.048 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.036 away. White text reads best on it, at 12.15:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.72:1 |
| White text | 12.15:1 |
Values
| HEX | #103C39 |
| RGB | rgb(16, 60, 57) |
| HSL | hsl(176, 58%, 15%) |
| OKLCH | oklch(32.6% 0.048 188.7) |
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 #103C39 | 12.15:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #103C39 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #103C39 text on white | 12.15:1 | AAA | Lc 97.6 | Preferred for body text |
| #103C39 text on black | 1.72:1 | 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 900.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CBDEDC
oklch(88.6% 0.02 189.2)
-
Step 300
300
#A7C8C5
oklch(80.8% 0.036 189.7)
-
Step 400
400
#77ACA7
oklch(70.6% 0.056 188.6)
-
Step 500
500
#509892
oklch(63.1% 0.073 188.4)
-
Step 600
600
#30827C
oklch(55.5% 0.079 188.4)
-
Step 700
700
#216E69
oklch(49.1% 0.074 188.8)
-
Step 800
800
#1E5A56
oklch(42.8% 0.061 188.9)
-
Step 900
900 (this color)
#103C39
oklch(32.6% 0.048 188.7)
-
Step 950
950
#142B29
oklch(26.9% 0.029 188.3)
#103C39 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) | #383839 | 0.050 |
| Deuteranopia (no green cones) | #323439 | 0.047 |
| Tritanopia (no blue cones) | #003E3B | 0.010 |
| Achromatopsia (no color) | #363636 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103C39
#103C39
oklch(32.6% 0.048 188.7)
- #492A2F
#492A2F
oklch(32.6% 0.047 9.5)
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 #103C39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.042
- Onyx #343A40 ΔE 0.047
- Gunmetal #293241 ΔE 0.049
- Pakistan Green #283618 ΔE 0.052
- Evergreen #05472A ΔE 0.053
- Charcoal #264653 ΔE 0.058
- Dark Teal #014D4E ΔE 0.059
Use #103C39 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.