#211F43
Closest named color: Oxford Blue (#1B263B). oklch(26.2% 0.066 283.4), rgb(33, 31, 67).
Aa
White text reads best on this color (15.65:1).
About this color
#211F43 is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.066 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.031 away. White text reads best on it, at 15.65:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.65:1 |
Values
| HEX | #211F43 |
| RGB | rgb(33, 31, 67) |
| HSL | hsl(243, 37%, 19%) |
| OKLCH | oklch(26.2% 0.066 283.4) |
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 #211F43 | 15.65:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #211F43 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #211F43 text on white | 15.65:1 | AAA | Lc 102.5 | Preferred for body text |
| #211F43 text on black | 1.34:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D5D6F6
oklch(88.5% 0.044 284)
-
Step 300
300
#B9BBF2
oklch(81% 0.077 282.9)
-
Step 400
400
#9795EB
oklch(70.6% 0.124 283.8)
-
Step 500
500
#7F79E5
oklch(63.2% 0.158 283.4)
-
Step 600
600
#6A5FD3
oklch(55.7% 0.172 283.6)
-
Step 700
700
#584DB7
oklch(49% 0.162 283.4)
-
Step 800
800
#484094
oklch(42.7% 0.133 283.5)
-
Step 900
900
#3C3776
oklch(37.7% 0.104 283.8)
-
Step 950
950 (this color)
#211F43
oklch(26.2% 0.066 283.4)
#211F43 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) | #102544 | 0.029 |
| Deuteranopia (no green cones) | #0F2242 | 0.027 |
| Tritanopia (no blue cones) | #16272D | 0.058 |
| Achromatopsia (no color) | #232323 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #211F43
#211F43
oklch(26.2% 0.066 283.4)
- #292500
#292500
oklch(26.1% 0.055 103.4)
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 #211F43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.031
- Dark #1B2431 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.051
- Jet #212529 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.060
- Dark Indigo #1F0954 ΔE 0.061
- Gunmetal #293241 ΔE 0.066
- Marine #042E60 ΔE 0.068
Use #211F43 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.