#002B40
Closest named color: Oxford Blue (#1B263B). oklch(27.3% 0.059 236.1), rgb(0, 43, 64).
Aa
White text reads best on this color (14.79:1).
About this color
#002B40 is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.059 and its hue 236°. 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 14.79:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.41:1 |
| White text | 14.79:1 |
Values
| HEX | #002B40 |
| RGB | rgb(0, 43, 64) |
| HSL | hsl(200, 100%, 13%) |
| OKLCH | oklch(27.3% 0.059 236.1) |
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 #002B40 | 14.79:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #002B40 | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #002B40 text on white | 14.79:1 | AAA | Lc 101.3 | Preferred for body text |
| #002B40 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
#DEECF6
oklch(93.6% 0.02 238.7)
-
Step 200
200
#C2DEF0
oklch(88.6% 0.039 236.1)
-
Step 300
300
#95C8E8
oklch(80.8% 0.07 236.3)
-
Step 400
400
#53ABDD
oklch(70.7% 0.112 236.3)
-
Step 500
500
#0094D0
oklch(63.1% 0.136 236.2)
-
Step 600
600
#007CAF
oklch(55.5% 0.12 236.1)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800
#00567A
oklch(42.8% 0.091 235.4)
-
Step 900
900
#004767
oklch(37.7% 0.082 236.6)
-
Step 950
950 (this color)
#002B40
oklch(27.3% 0.059 236.1)
#002B40 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) | #212B41 | 0.034 |
| Deuteranopia (no green cones) | #182540 | 0.028 |
| Tritanopia (no blue cones) | #003032 | 0.036 |
| Achromatopsia (no color) | #282828 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002B40
#002B40
oklch(27.3% 0.059 236.1)
- #3D1E06
#3D1E06
oklch(27.3% 0.06 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 #002B40, 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 0.038
- Jet #212529 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.052
- Gunmetal #293241 ΔE 0.054
- Midnight Green #073B4C ΔE 0.057
- Marine #042E60 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.060
Use #002B40 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.