#02459D
Closest named color: Cobalt (#1E488F). oklch(41.2% 0.156 258.7), rgb(2, 69, 157).
Aa
White text reads best on this color (8.97:1).
About this color
#02459D is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.156 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.029 away. White text reads best on it, at 8.97:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.34:1 |
| White text | 8.97:1 |
Values
| HEX | #02459D |
| RGB | rgb(2, 69, 157) |
| HSL | hsl(214, 97%, 31%) |
| OKLCH | oklch(41.2% 0.156 258.7) |
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 #02459D | 8.97:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #02459D | 2.34:1 | Fails | Lc 14.2 | Not readable |
| #02459D text on white | 8.97:1 | AAA | Lc 89.8 | Fine for body text |
| #02459D text on black | 2.34:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9DC2FC
oklch(80.8% 0.092 259.2)
-
Step 400
400
#66A0FA
oklch(70.6% 0.146 258.9)
-
Step 500
500
#3A86F7
oklch(63.2% 0.185 258.5)
-
Step 600
600
#116CE6
oklch(55.6% 0.201 258.6)
-
Step 700
700
#0059C8
oklch(49.1% 0.188 258.7)
-
Step 800
800 (this color)
#02459D
oklch(41.2% 0.156 258.7)
-
Step 900
900
#123F80
oklch(37.8% 0.12 258.4)
-
Step 950
950
#0C254B
oklch(26.9% 0.077 258.8)
#02459D 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) | #0050A0 | 0.030 |
| Deuteranopia (no green cones) | #00439B | 0.006 |
| Tritanopia (no blue cones) | #005B6A | 0.117 |
| Achromatopsia (no color) | #494949 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #02459D
#02459D
oklch(41.2% 0.156 258.7)
- #644400
#644400
oklch(41.2% 0.086 78.2)
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 #02459D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.029
- Sapphire #2138AB ΔE 0.040
- Light Navy #155084 ΔE 0.056
- Dusk Blue #26538D ΔE 0.056
- Twilight Blue #0A437A ΔE 0.058
- Blueberry #464196 ΔE 0.063
- Deep Sea Blue #015482 ΔE 0.066
- Blue Blue #2242C7 ΔE 0.071
Use #02459D 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.