#08213F
Closest named color: Oxford Blue (#1B263B). oklch(24.7% 0.065 255), rgb(8, 33, 63).
Aa
White text reads best on this color (16.15:1).
About this color
#08213F is a very dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.065 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.032 away. White text reads best on it, at 16.15:1.
| Hue family | Blues |
| Lightness | very dark (25%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.29:1 |
| White text | 16.15:1 |
Values
| HEX | #08213F |
| RGB | rgb(8, 33, 63) |
| HSL | hsl(213, 77%, 14%) |
| OKLCH | oklch(24.7% 0.065 255) |
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 #08213F | 16.15:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #08213F | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #08213F text on white | 16.15:1 | AAA | Lc 102.9 | Preferred for body text |
| #08213F text on black | 1.29:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#9FC4F2
oklch(81% 0.077 254.1)
-
Step 400
400
#6AA3EC
oklch(70.7% 0.123 255.2)
-
Step 500
500
#3F8AE6
oklch(63.1% 0.157 255.2)
-
Step 600
600
#1772D4
oklch(55.7% 0.171 254.9)
-
Step 700
700
#055FB7
oklch(49.1% 0.158 254.8)
-
Step 800
800
#0C4E94
oklch(42.7% 0.131 254.7)
-
Step 900
900
#154176
oklch(37.6% 0.102 255.3)
-
Step 950
950 (this color)
#08213F
oklch(24.7% 0.065 255)
#08213F 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) | #122340 | 0.014 |
| Deuteranopia (no green cones) | #091E3E | 0.010 |
| Tritanopia (no blue cones) | #00282C | 0.050 |
| Achromatopsia (no color) | #212121 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #08213F
#08213F
oklch(24.7% 0.065 255)
- #2F1D00
#2F1D00
oklch(24.8% 0.052 76.2)
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 #08213F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.032
- Dark #1B2431 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.042
- Navy Blue #001146 ΔE 0.054
- Jet #212529 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.067
- Marine #042E60 ΔE 0.069
- Dark Indigo #1F0954 ΔE 0.075
Use #08213F 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.