#103E4D
Closest named color: Midnight Green (#073B4C). oklch(34.1% 0.055 223.9), rgb(16, 62, 77).
Aa
White text reads best on this color (11.54:1).
About this color
#103E4D is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.055 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.012 away. White text reads best on it, at 11.54:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.81:1 |
| White text | 11.54:1 |
Values
| HEX | #103E4D |
| RGB | rgb(16, 62, 77) |
| HSL | hsl(195, 66%, 18%) |
| OKLCH | oklch(34.1% 0.055 223.9) |
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 #103E4D | 11.54:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #103E4D | 1.81:1 | Fails | Lc 7.5 | Not readable |
| #103E4D text on white | 11.54:1 | AAA | Lc 96.3 | Preferred for body text |
| #103E4D text on black | 1.81:1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE4
oklch(88.5% 0.023 221.8)
-
Step 300
300
#A5C7D4
oklch(80.9% 0.041 223)
-
Step 400
400
#72AABF
oklch(70.7% 0.066 223.5)
-
Step 500
500
#4A94AF
oklch(63% 0.084 224.5)
-
Step 600
600
#267E9B
oklch(55.5% 0.092 224.5)
-
Step 700
700
#176B84
oklch(49.2% 0.085 223.3)
-
Step 800
800
#17576B
oklch(42.7% 0.07 223.3)
-
Step 900
900 (this color)
#103E4D
oklch(34.1% 0.055 223.9)
-
Step 950
950
#112A33
oklch(26.9% 0.035 224)
#103E4D 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) | #363C4E | 0.044 |
| Deuteranopia (no green cones) | #2D364D | 0.038 |
| Tritanopia (no blue cones) | #004343 | 0.030 |
| Achromatopsia (no color) | #393939 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103E4D
#103E4D
oklch(34.1% 0.055 223.9)
- #502E20
#502E20
oklch(34% 0.055 42.9)
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 #103E4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.012
- Dark Blue Grey #1F3B4D ΔE 0.015
- Charcoal #264653 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.040
- Onyx #343A40 ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.044
- Gunmetal #293241 ΔE 0.044
- Dark Teal #014D4E ΔE 0.050
Use #103E4D 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.