#002B3F
Closest named color: Oxford Blue (#1B263B). oklch(27.3% 0.058 234.7), rgb(0, 43, 63).
Aa
White text reads best on this color (14.81:1).
About this color
#002B3F is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.058 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.029 away. White text reads best on it, at 14.81:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.41:1 |
| White text | 14.81:1 |
Values
| HEX | #002B3F |
| RGB | rgb(0, 43, 63) |
| HSL | hsl(199, 100%, 12%) |
| OKLCH | oklch(27.3% 0.058 234.7) |
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 #002B3F | 14.81:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #002B3F | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #002B3F text on white | 14.81:1 | AAA | Lc 101.3 | Preferred for body text |
| #002B3F text on black | 1.41:1 | 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
#F0F7FB
oklch(97.2% 0.009 232.4)
-
Step 100
100
#DEECF5
oklch(93.5% 0.019 235.7)
-
Step 200
200
#C2DEEF
oklch(88.5% 0.038 234.5)
-
Step 300
300
#95C8E7
oklch(80.8% 0.069 235.4)
-
Step 400
400
#53ABDB
oklch(70.7% 0.11 235.1)
-
Step 500
500
#0095CE
oklch(63.2% 0.133 234.7)
-
Step 600
600
#007DAE
oklch(55.7% 0.118 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004765
oklch(37.6% 0.08 234.9)
-
Step 950
950 (this color)
#002B3F
oklch(27.3% 0.058 234.7)
#002B3F 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) | #212B40 | 0.035 |
| Deuteranopia (no green cones) | #19253F | 0.029 |
| Tritanopia (no blue cones) | #003032 | 0.034 |
| Achromatopsia (no color) | #282828 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002B3F
#002B3F
oklch(27.3% 0.058 234.7)
- #3C1E07
#3C1E07
oklch(27.2% 0.058 54.6)
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 #002B3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.029
- Dark #1B2431 ΔE 0.037
- Jet #212529 ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.054
- Midnight Green #073B4C ΔE 0.057
- Marine #042E60 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.061
Use #002B3F 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.