#201F4F
Closest named color: Oxford Blue (#1B263B). oklch(27.1% 0.086 279.9), rgb(32, 31, 79).
Aa
White text reads best on this color (15.32:1).
About this color
#201F4F is a dark, moderately saturated blue. In OKLCH its lightness is 27%, its chroma 0.086 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.047 away. White text reads best on it, at 15.32:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.37:1 |
| White text | 15.32:1 |
Values
| HEX | #201F4F |
| RGB | rgb(32, 31, 79) |
| HSL | hsl(241, 44%, 22%) |
| OKLCH | oklch(27.1% 0.086 279.9) |
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 #201F4F | 15.32:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #201F4F | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #201F4F text on white | 15.32:1 | AAA | Lc 102.1 | Preferred for body text |
| #201F4F text on black | 1.37:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FE
oklch(93.5% 0.03 279.6)
-
Step 200
200
#D1D6FF
oklch(88.5% 0.057 279.7)
-
Step 300
300
#B4BAFF
oklch(80.9% 0.098 280.1)
-
Step 400
400
#8F93FF
oklch(70.7% 0.156 280)
-
Step 500
500
#7673FF
oklch(63.1% 0.202 279.9)
-
Step 600
600
#6254F1
oklch(55.5% 0.226 280.1)
-
Step 700
700
#5243D2
oklch(49.1% 0.21 280.1)
-
Step 800
800
#4239AA
oklch(42.8% 0.174 279.7)
-
Step 900
900
#373386
oklch(37.7% 0.134 279.9)
-
Step 950
950 (this color)
#201F4F
oklch(27.1% 0.086 279.9)
#201F4F 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) | #022751 | 0.038 |
| Deuteranopia (no green cones) | #00234E | 0.038 |
| Tritanopia (no blue cones) | #0A2A33 | 0.074 |
| Achromatopsia (no color) | #252525 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #201F4F
#201F4F
oklch(27.1% 0.086 279.9)
- #2D2700
#2D2700
oklch(27.1% 0.056 100.5)
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 #201F4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.047
- Dark Indigo #1F0954 ΔE 0.050
- Marine #042E60 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.059
- Midnight Blue #191970 ΔE 0.062
- Dark #1B2431 ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.066
- Navy Blue #001146 ΔE 0.069
Use #201F4F 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.