#203259
Closest named color: Prussian Blue (#1D3557). oklch(32.3% 0.074 264), rgb(32, 50, 89).
Aa
White text reads best on this color (12.63:1).
About this color
#203259 is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.074 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.011 away. White text reads best on it, at 12.63:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #203259 |
| RGB | rgb(32, 50, 89) |
| HSL | hsl(221, 47%, 24%) |
| OKLCH | oklch(32.3% 0.074 264) |
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 #203259 | 12.63:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #203259 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #203259 text on white | 12.63:1 | AAA | Lc 98.5 | Preferred for body text |
| #203259 text on black | 1.66:1 | 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 950.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAFA
oklch(88.6% 0.048 263.1)
-
Step 300
300
#A4C1FA
oklch(81% 0.087 263.6)
-
Step 400
400
#749EF7
oklch(70.7% 0.139 264)
-
Step 500
500
#5083F4
oklch(63.2% 0.178 263.8)
-
Step 600
600
#3669E2
oklch(55.6% 0.193 263.9)
-
Step 700
700
#2956C5
oklch(49.1% 0.181 264.1)
-
Step 800
800
#23479F
oklch(42.6% 0.149 264.2)
-
Step 900
900
#213D7E
oklch(37.7% 0.115 264.1)
-
Step 950
950 (this color)
#203259
oklch(32.3% 0.074 264)
#203259 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) | #21365B | 0.013 |
| Deuteranopia (no green cones) | #193158 | 0.010 |
| Tritanopia (no blue cones) | #003B41 | 0.064 |
| Achromatopsia (no color) | #333333 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #203259
#203259
oklch(32.3% 0.074 264)
- #433000
#433000
oklch(32.2% 0.066 84.5)
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 #203259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.011
- Marine #042E60 ΔE 0.033
- Marine Blue #01386A ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.043
- Gunmetal #293241 ΔE 0.045
- Midnight Green #073B4C ΔE 0.046
- Oxford Blue #1B263B ΔE 0.062
Use #203259 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.