#204CB1
Closest named color: Blue Blue (#2242C7). oklch(45.1% 0.168 263.4), rgb(32, 76, 177).
Aa
White text reads best on this color (7.69:1).
About this color
#204CB1 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.168 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.041 away. White text reads best on it, at 7.69:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.73:1 |
| White text | 7.69:1 |
Values
| HEX | #204CB1 |
| RGB | rgb(32, 76, 177) |
| HSL | hsl(222, 69%, 41%) |
| OKLCH | oklch(45.1% 0.168 263.4) |
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 #204CB1 | 7.69:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #204CB1 | 2.73:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #204CB1 text on white | 7.69:1 | AAA | Lc 86.1 | Fine for body text |
| #204CB1 text on black | 2.73:1 | Fails | Lc -15.9 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFE
oklch(93.6% 0.029 264.4)
-
Step 200
200
#C7DAFE
oklch(88.6% 0.054 263.2)
-
Step 300
300
#A1C1FF
oklch(81% 0.095 263.3)
-
Step 400
400
#6E9DFF
oklch(70.6% 0.153 263.6)
-
Step 500
500
#4781FF
oklch(63.2% 0.197 263.3)
-
Step 600
600
#2965F0
oklch(55.5% 0.218 263.3)
-
Step 700
700
#1D53D1
oklch(49.1% 0.203 263.3)
-
Step 800
800 (this color)
#204CB1
oklch(45.1% 0.168 263.4)
-
Step 900
900
#1A3B86
oklch(37.6% 0.132 263.5)
-
Step 950
950
#10244E
oklch(27.1% 0.082 263)
#204CB1 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) | #005AB4 | 0.036 |
| Deuteranopia (no green cones) | #004DAF | 0.015 |
| Tritanopia (no blue cones) | #006577 | 0.129 |
| Achromatopsia (no color) | #535353 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #204CB1
#204CB1
oklch(45.1% 0.168 263.4)
- #6E5000
#6E5000
oklch(45.1% 0.093 83.5)
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 #204CB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.041
- Sapphire #2138AB ΔE 0.048
- Cobalt #1E488F ΔE 0.056
- Majorelle Blue #3F37C9 ΔE 0.062
- Blueberry #464196 ΔE 0.063
- Dusk Blue #26538D ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.074
- Denim Blue #3B5B92 ΔE 0.075
Use #204CB1 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.