#103D38
Closest named color: Midnight Green (#073B4C). oklch(32.8% 0.049 184.7), rgb(16, 61, 56).
Aa
White text reads best on this color (12.02:1).
About this color
#103D38 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.049 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.039 away. White text reads best on it, at 12.02:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.74:1 |
| White text | 12.02:1 |
Values
| HEX | #103D38 |
| RGB | rgb(16, 61, 56) |
| HSL | hsl(173, 58%, 15%) |
| OKLCH | oklch(32.8% 0.049 184.7) |
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 #103D38 | 12.02:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #103D38 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #103D38 text on white | 12.02:1 | AAA | Lc 97.3 | Preferred for body text |
| #103D38 text on black | 1.74:1 | 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
#CBDEDB
oklch(88.6% 0.021 185.4)
-
Step 300
300
#A7C9C3
oklch(80.9% 0.037 183.5)
-
Step 400
400
#76ADA5
oklch(70.7% 0.059 184.6)
-
Step 500
500
#4F988F
oklch(63% 0.075 185.1)
-
Step 600
600
#2E8379
oklch(55.6% 0.082 184.3)
-
Step 700
700
#1F6F66
oklch(49.2% 0.077 184.2)
-
Step 800
800
#1D5A53
oklch(42.7% 0.063 184.5)
-
Step 900
900 (this color)
#103D38
oklch(32.8% 0.049 184.7)
-
Step 950
950
#132B28
oklch(26.8% 0.031 185.1)
#103D38 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) | #3A3938 | 0.053 |
| Deuteranopia (no green cones) | #333439 | 0.050 |
| Tritanopia (no blue cones) | #003E3B | 0.009 |
| Achromatopsia (no color) | #363636 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103D38
#103D38
oklch(32.8% 0.049 184.7)
- #4A2A32
#4A2A32
oklch(32.8% 0.049 3.9)
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 #103D38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.044
- Onyx #343A40 ΔE 0.048
- Evergreen #05472A ΔE 0.049
- Pakistan Green #283618 ΔE 0.050
- Gunmetal #293241 ΔE 0.052
- Dark Teal #014D4E ΔE 0.056
- Charcoal #264653 ΔE 0.058
Use #103D38 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.