#103E3F
Closest named color: Midnight Green (#073B4C). oklch(33.4% 0.048 197.2), rgb(16, 62, 63).
Aa
White text reads best on this color (11.77:1).
About this color
#103E3F is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.048 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.029 away. White text reads best on it, at 11.77:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.78:1 |
| White text | 11.77:1 |
Values
| HEX | #103E3F |
| RGB | rgb(16, 62, 63) |
| HSL | hsl(181, 59%, 15%) |
| OKLCH | oklch(33.4% 0.048 197.2) |
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 #103E3F | 11.77:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #103E3F | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #103E3F text on white | 11.77:1 | AAA | Lc 96.8 | Preferred for body text |
| #103E3F text on black | 1.78:1 | 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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A6C8C9
oklch(80.8% 0.036 198.7)
-
Step 400
400
#75ACAD
oklch(70.7% 0.058 197.4)
-
Step 500
500
#4D9799
oklch(63% 0.074 197.8)
-
Step 600
600
#2B8284
oklch(55.7% 0.081 197.3)
-
Step 700
700
#1B6E6F
oklch(49.2% 0.076 196.2)
-
Step 800
800
#1A595B
oklch(42.6% 0.062 198.1)
-
Step 900
900 (this color)
#103E3F
oklch(33.4% 0.048 197.2)
-
Step 950
950
#122B2C
oklch(27% 0.031 198.9)
#103E3F 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) | #393B3F | 0.049 |
| Deuteranopia (no green cones) | #32353F | 0.047 |
| Tritanopia (no blue cones) | #00403E | 0.011 |
| Achromatopsia (no color) | #383838 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103E3F
#103E3F
oklch(33.4% 0.048 197.2)
- #4C2C2D
#4C2C2D
oklch(33.4% 0.048 17.9)
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 #103E3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.034
- Onyx #343A40 ΔE 0.043
- Charcoal #264653 ΔE 0.048
- Gunmetal #293241 ΔE 0.048
- Dark Teal #014D4E ΔE 0.050
- Evergreen #05472A ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.056
Use #103E3F 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.