#203E46
Closest named color: Dark Blue Grey (#1F3B4D). oklch(34.4% 0.038 217), rgb(32, 62, 70).
Aa
White text reads best on this color (11.41:1).
About this color
#203E46 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.038 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.019 away. White text reads best on it, at 11.41:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.83:1 |
| White text | 11.41:1 |
Values
| HEX | #203E46 |
| RGB | rgb(32, 62, 70) |
| HSL | hsl(193, 37%, 20%) |
| OKLCH | oklch(34.4% 0.038 217) |
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 #203E46 | 11.41:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #203E46 | 1.83:1 | Fails | Lc 7.7 | Not readable |
| #203E46 text on white | 11.41:1 | AAA | Lc 96.2 | Preferred for body text |
| #203E46 text on black | 1.83:1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ADC6CD
oklch(81% 0.029 216.5)
-
Step 400
400
#80A8B3
oklch(70.6% 0.046 216.5)
-
Step 500
500
#5F93A1
oklch(63.2% 0.059 216.6)
-
Step 600
600
#447D8C
oklch(55.7% 0.064 216.8)
-
Step 700
700
#356977
oklch(49.1% 0.06 217.5)
-
Step 800
800
#2D5661
oklch(42.8% 0.049 217.2)
-
Step 900
900 (this color)
#203E46
oklch(34.4% 0.038 217)
-
Step 950
950
#18292E
oklch(26.8% 0.024 218.3)
#203E46 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) | #393C46 | 0.034 |
| Deuteranopia (no green cones) | #333846 | 0.031 |
| Tritanopia (no blue cones) | #0B4140 | 0.024 |
| Achromatopsia (no color) | #3A3A3A | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203E46
#203E46
oklch(34.4% 0.038 217)
- #4B322B
#4B322B
oklch(34.4% 0.039 36.3)
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 #203E46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.019
- Midnight Green #073B4C ΔE 0.026
- Onyx #343A40 ΔE 0.028
- Charcoal #264653 ΔE 0.032
- Gunmetal #293241 ΔE 0.039
- Charcoal Grey #3C4142 ΔE 0.041
- Dark Grey Blue #29465B ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.049
Use #203E46 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.