#203C49
Closest named color: Dark Blue Grey (#1F3B4D). oklch(34% 0.041 229.6), rgb(32, 60, 73).
Aa
White text reads best on this color (11.64:1).
About this color
#203C49 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.041 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.009 away. White text reads best on it, at 11.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.80:1 |
| White text | 11.64:1 |
Values
| HEX | #203C49 |
| RGB | rgb(32, 60, 73) |
| HSL | hsl(199, 39%, 21%) |
| OKLCH | oklch(34% 0.041 229.6) |
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 #203C49 | 11.64:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #203C49 | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #203C49 text on white | 11.64:1 | AAA | Lc 96.7 | Preferred for body text |
| #203C49 text on black | 1.80:1 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ADC5D1
oklch(80.9% 0.031 229.3)
-
Step 400
400
#81A7B9
oklch(70.7% 0.049 228.5)
-
Step 500
500
#6191A8
oklch(63.1% 0.062 229.6)
-
Step 600
600
#467B94
oklch(55.6% 0.069 230.1)
-
Step 700
700
#37687E
oklch(49.2% 0.064 229.1)
-
Step 800
800
#2E5566
oklch(42.8% 0.052 228.1)
-
Step 900
900 (this color)
#203C49
oklch(34% 0.041 229.6)
-
Step 950
950
#192931
oklch(27% 0.026 230.6)
#203C49 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) | #353B4A | 0.029 |
| Deuteranopia (no green cones) | #303749 | 0.026 |
| Tritanopia (no blue cones) | #094040 | 0.031 |
| Achromatopsia (no color) | #383838 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203C49
#203C49
oklch(34% 0.041 229.6)
- #493225
#493225
oklch(34% 0.04 50.4)
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 #203C49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.009
- Midnight Green #073B4C ΔE 0.021
- Onyx #343A40 ΔE 0.029
- Gunmetal #293241 ΔE 0.033
- Charcoal #264653 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.046
Use #203C49 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.