#03214B
Closest named color: Oxford Blue (#1B263B). oklch(25.5% 0.086 257.6), rgb(3, 33, 75).
Aa
White text reads best on this color (15.87:1).
About this color
#03214B is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.086 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.046 away. White text reads best on it, at 15.87:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.87:1 |
Values
| HEX | #03214B |
| RGB | rgb(3, 33, 75) |
| HSL | hsl(215, 92%, 15%) |
| OKLCH | oklch(25.5% 0.086 257.6) |
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 #03214B | 15.87:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #03214B | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #03214B text on white | 15.87:1 | AAA | Lc 102.5 | Preferred for body text |
| #03214B text on black | 1.32:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFE
oklch(93.6% 0.029 257.8)
-
Step 200
200
#C2DBFF
oklch(88.5% 0.057 257.5)
-
Step 300
300
#99C3FF
oklch(80.9% 0.097 257.3)
-
Step 400
400
#5FA1FF
oklch(70.7% 0.154 257.4)
-
Step 500
500
#2B85FF
oklch(63.1% 0.2 257.7)
-
Step 600
600
#006DE6
oklch(55.7% 0.202 257.5)
-
Step 700
700
#005BC3
oklch(49.1% 0.179 257.6)
-
Step 800
800
#004AA2
oklch(42.7% 0.156 257.7)
-
Step 900
900
#023E87
oklch(37.8% 0.134 257.5)
-
Step 950
950 (this color)
#03214B
oklch(25.5% 0.086 257.6)
#03214B 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) | #06264D | 0.017 |
| Deuteranopia (no green cones) | #001F4A | 0.008 |
| Tritanopia (no blue cones) | #002B32 | 0.064 |
| Achromatopsia (no color) | #222222 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03214B
#03214B
oklch(25.5% 0.086 257.6)
- #311F00
#311F00
oklch(25.6% 0.053 77.5)
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 #03214B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.046
- Navy Blue #001146 ΔE 0.048
- Marine #042E60 ΔE 0.053
- Dark #1B2431 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.063
- Dark Indigo #1F0954 ΔE 0.064
- Darkblue #030764 ΔE 0.069
- Space Cadet #2B2D42 ΔE 0.072
Use #03214B 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.