#02455B
Closest named color: Charcoal (#264653). oklch(36.5% 0.07 227.7), rgb(2, 69, 91).
Aa
White text reads best on this color (10.47:1).
About this color
#02455B is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.070 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.028 away. White text reads best on it, at 10.47:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.00:1 |
| White text | 10.47:1 |
Values
| HEX | #02455B |
| RGB | rgb(2, 69, 91) |
| HSL | hsl(195, 96%, 18%) |
| OKLCH | oklch(36.5% 0.07 227.7) |
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 #02455B | 10.47:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #02455B | 2.00:1 | Fails | Lc 10.1 | Not readable |
| #02455B text on white | 10.47:1 | AAA | Lc 93.9 | Preferred for body text |
| #02455B text on black | 2.00:1 | Fails | Lc -8.7 | 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 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE8
oklch(88.4% 0.029 228.1)
-
Step 300
300
#9EC8DB
oklch(80.9% 0.052 227.3)
-
Step 400
400
#65ABCA
oklch(70.7% 0.084 228.4)
-
Step 500
500
#2F96BC
oklch(63.2% 0.107 227.3)
-
Step 600
600
#007FA5
oklch(55.7% 0.108 227.8)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#005772
oklch(42.6% 0.083 227.6)
-
Step 900
900 (this color)
#02455B
oklch(36.5% 0.07 227.7)
-
Step 950
950
#092B37
oklch(27.1% 0.044 225.6)
#02455B 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) | #39445C | 0.050 |
| Deuteranopia (no green cones) | #2E3C5B | 0.043 |
| Tritanopia (no blue cones) | #004B4C | 0.038 |
| Achromatopsia (no color) | #3F3F3F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02455B
#02455B
oklch(36.5% 0.07 227.7)
- #5C321B
#5C321B
oklch(36.5% 0.07 48.1)
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 #02455B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.037
- Midnight Green #073B4C ΔE 0.037
- Dark Teal #014D4E ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.051
- Marine Blue #01386A ΔE 0.054
- Deep Teal #00555A ΔE 0.054
Use #02455B 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.