#103A50
Closest named color: Midnight Green (#073B4C). oklch(33.1% 0.06 235.8), rgb(16, 58, 80).
Aa
White text reads best on this color (12.04:1).
About this color
#103A50 is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.060 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.010 away. White text reads best on it, at 12.04:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.74:1 |
| White text | 12.04:1 |
Values
| HEX | #103A50 |
| RGB | rgb(16, 58, 80) |
| HSL | hsl(201, 67%, 19%) |
| OKLCH | oklch(33.1% 0.06 235.8) |
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 #103A50 | 12.04:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #103A50 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #103A50 text on white | 12.04:1 | AAA | Lc 97.3 | Preferred for body text |
| #103A50 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A6C6DA
oklch(81% 0.045 235.5)
-
Step 400
400
#74A8C7
oklch(70.7% 0.071 235.3)
-
Step 500
500
#4D92B9
oklch(63.1% 0.091 235.5)
-
Step 600
600
#2C7CA5
oklch(55.7% 0.099 235.1)
-
Step 700
700
#1E688E
oklch(49.1% 0.093 236)
-
Step 800
800
#1C5573
oklch(42.7% 0.076 235.8)
-
Step 900
900 (this color)
#103A50
oklch(33.1% 0.06 235.8)
-
Step 950
950
#132936
oklch(26.9% 0.037 236.3)
#103A50 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) | #2F3A51 | 0.035 |
| Deuteranopia (no green cones) | #273350 | 0.031 |
| Tritanopia (no blue cones) | #004041 | 0.040 |
| Achromatopsia (no color) | #363636 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103A50
#103A50
oklch(33.1% 0.06 235.8)
- #4D2D15
#4D2D15
oklch(33.2% 0.06 55.7)
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 #103A50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.010
- Dark Blue Grey #1F3B4D ΔE 0.015
- Prussian Blue #1D3557 ΔE 0.025
- Gunmetal #293241 ΔE 0.038
- Charcoal #264653 ΔE 0.048
- Marine Blue #01386A ΔE 0.048
- Onyx #343A40 ΔE 0.049
- Space Cadet #2B2D42 ΔE 0.049
Use #103A50 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.