#103F50
Closest named color: Midnight Green (#073B4C). oklch(34.5% 0.057 226.5), rgb(16, 63, 80).
Aa
White text reads best on this color (11.35:1).
About this color
#103F50 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.057 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.016 away. White text reads best on it, at 11.35:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.84:1 |
| White text | 11.35:1 |
Values
| HEX | #103F50 |
| RGB | rgb(16, 63, 80) |
| HSL | hsl(196, 67%, 19%) |
| OKLCH | oklch(34.5% 0.057 226.5) |
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 #103F50 | 11.35:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #103F50 | 1.84:1 | Fails | Lc 7.9 | Not readable |
| #103F50 text on white | 11.35:1 | AAA | Lc 95.9 | Preferred for body text |
| #103F50 text on black | 1.84:1 | 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
#CADDE5
oklch(88.6% 0.023 224.9)
-
Step 300
300
#A4C7D6
oklch(80.9% 0.043 225.7)
-
Step 400
400
#71AAC2
oklch(70.7% 0.069 226.4)
-
Step 500
500
#4894B2
oklch(63% 0.087 226.5)
-
Step 600
600
#237E9E
oklch(55.6% 0.095 226.5)
-
Step 700
700
#136A87
oklch(49% 0.089 226.6)
-
Step 800
800
#15576E
oklch(42.8% 0.073 226.3)
-
Step 900
900 (this color)
#103F50
oklch(34.5% 0.057 226.5)
-
Step 950
950
#112A34
oklch(27% 0.036 226.6)
#103F50 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) | #363E51 | 0.043 |
| Deuteranopia (no green cones) | #2D3750 | 0.038 |
| Tritanopia (no blue cones) | #004445 | 0.031 |
| Achromatopsia (no color) | #3A3A3A | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103F50
#103F50
oklch(34.5% 0.057 226.5)
- #512F1F
#512F1F
oklch(34.4% 0.056 45.6)
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 #103F50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.016
- Dark Blue Grey #1F3B4D ΔE 0.016
- Charcoal #264653 ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.039
- Onyx #343A40 ΔE 0.045
- Gunmetal #293241 ΔE 0.047
- Dark Teal #014D4E ΔE 0.049
Use #103F50 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.