#002639
Closest named color: Oxford Blue (#1B263B). oklch(25.4% 0.055 235.8), rgb(0, 38, 57).
Aa
White text reads best on this color (15.71:1).
About this color
#002639 is a dark, muted blue. In OKLCH its lightness is 25%, its chroma 0.055 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.030 away. White text reads best on it, at 15.71:1.
| Hue family | Blues |
| Lightness | dark (25%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.71:1 |
Values
| HEX | #002639 |
| RGB | rgb(0, 38, 57) |
| HSL | hsl(200, 100%, 11%) |
| OKLCH | oklch(25.4% 0.055 235.8) |
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 #002639 | 15.71:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #002639 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #002639 text on white | 15.71:1 | AAA | Lc 102.4 | Preferred for body text |
| #002639 text on black | 1.33:1 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF5
oklch(93.6% 0.018 237.8)
-
Step 200
200
#C4DDEE
oklch(88.4% 0.036 237.6)
-
Step 300
300
#99C8E5
oklch(81% 0.064 235.7)
-
Step 400
400
#5AAAD8
oklch(70.6% 0.104 236)
-
Step 500
500
#1194CE
oklch(63.1% 0.132 236)
-
Step 600
600
#007DAF
oklch(55.7% 0.119 235.4)
-
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
#004766
oklch(37.6% 0.081 235.8)
-
Step 950
950 (this color)
#002639
oklch(25.4% 0.055 235.8)
#002639 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) | #1D263A | 0.032 |
| Deuteranopia (no green cones) | #152139 | 0.025 |
| Tritanopia (no blue cones) | #002B2D | 0.033 |
| Achromatopsia (no color) | #232323 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #002639
#002639
oklch(25.4% 0.055 235.8)
- #361B05
#361B05
oklch(25.5% 0.054 56.6)
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 #002639, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.030
- Dark #1B2431 ΔE 0.031
- Rich Black #0D1B2A ΔE 0.043
- Jet #212529 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.063
- Gunmetal #293241 ΔE 0.068
- Navy Blue #001146 ΔE 0.073
- Marine #042E60 ΔE 0.074
Use #002639 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.