#203E85
Closest named color: Twilight Blue (#0A437A). oklch(38.4% 0.125 264.1), rgb(32, 62, 133).
Aa
White text reads best on this color (10.05:1).
About this color
#203E85 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.125 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.028 away. White text reads best on it, at 10.05:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #203E85 |
| RGB | rgb(32, 62, 133) |
| HSL | hsl(222, 61%, 32%) |
| OKLCH | oklch(38.4% 0.125 264.1) |
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 #203E85 | 10.05:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #203E85 | 2.08:1 | Fails | Lc 11.0 | Not readable |
| #203E85 text on white | 10.05:1 | AAA | Lc 92.9 | Preferred for body text |
| #203E85 text on black | 2.08:1 | Fails | Lc -9.5 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#709DFD
oklch(70.6% 0.149 264)
-
Step 500
500
#4C81FB
oklch(63.1% 0.191 264)
-
Step 600
600
#3166EA
oklch(55.5% 0.208 264.1)
-
Step 700
700
#2554CC
oklch(49.1% 0.193 264.2)
-
Step 800
800
#1F46A5
oklch(42.8% 0.16 263.9)
-
Step 900
900 (this color)
#203E85
oklch(38.4% 0.125 264.1)
-
Step 950
950
#12244C
oklch(27% 0.078 263.8)
#203E85 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) | #0F4788 | 0.026 |
| Deuteranopia (no green cones) | #003E84 | 0.020 |
| Tritanopia (no blue cones) | #004F5B | 0.099 |
| Achromatopsia (no color) | #424242 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203E85
#203E85
oklch(38.4% 0.125 264.1)
- #573F00
#573F00
oklch(38.4% 0.079 84.1)
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 #203E85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.028
- Cobalt #1E488F ΔE 0.031
- Light Navy #155084 ΔE 0.052
- Marine Blue #01386A ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.056
- Blueberry #464196 ΔE 0.060
- Dusk Blue #26538D ΔE 0.062
- Sapphire #2138AB ΔE 0.064
Use #203E85 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.