#103E45
Closest named color: Midnight Green (#073B4C). oklch(33.7% 0.05 209.5), rgb(16, 62, 69).
Aa
White text reads best on this color (11.68:1).
About this color
#103E45 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.050 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.019 away. White text reads best on it, at 11.68:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.79:1 |
| White text | 11.68:1 |
Values
| HEX | #103E45 |
| RGB | rgb(16, 62, 69) |
| HSL | hsl(188, 62%, 17%) |
| OKLCH | oklch(33.7% 0.05 209.5) |
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 #103E45 | 11.68:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #103E45 | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #103E45 text on white | 11.68:1 | AAA | Lc 96.6 | Preferred for body text |
| #103E45 text on black | 1.79:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE1
oklch(88.5% 0.021 211.8)
-
Step 300
300
#A6C8CE
oklch(81% 0.037 209.5)
-
Step 400
400
#74ABB5
oklch(70.7% 0.059 210.1)
-
Step 500
500
#4C96A3
oklch(63.1% 0.076 210.4)
-
Step 600
600
#29808E
oklch(55.5% 0.083 210.3)
-
Step 700
700
#1A6C78
oklch(49% 0.077 209.6)
-
Step 800
800
#195862
oklch(42.6% 0.064 210.2)
-
Step 900
900 (this color)
#103E45
oklch(33.7% 0.05 209.5)
-
Step 950
950
#122B2F
oklch(27.1% 0.032 209)
#103E45 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) | #383B45 | 0.047 |
| Deuteranopia (no green cones) | #303645 | 0.042 |
| Tritanopia (no blue cones) | #004140 | 0.018 |
| Achromatopsia (no color) | #383838 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103E45
#103E45
oklch(33.7% 0.05 209.5)
- #4E2D28
#4E2D28
oklch(33.7% 0.05 29.2)
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 #103E45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.019
- Dark Blue Grey #1F3B4D ΔE 0.024
- Onyx #343A40 ΔE 0.041
- Charcoal #264653 ΔE 0.041
- Gunmetal #293241 ΔE 0.044
- Dark Teal #014D4E ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.052
Use #103E45 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.