#0144A4
Closest named color: Sapphire (#2138AB). oklch(41.6% 0.166 259.8), rgb(1, 68, 164).
Aa
White text reads best on this color (8.88:1).
About this color
#0144A4 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.166 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.032 away. White text reads best on it, at 8.88:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.36:1 |
| White text | 8.88:1 |
Values
| HEX | #0144A4 |
| RGB | rgb(1, 68, 164) |
| HSL | hsl(215, 99%, 32%) |
| OKLCH | oklch(41.6% 0.166 259.8) |
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 #0144A4 | 8.88:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #0144A4 | 2.36:1 | Fails | Lc 14.5 | Not readable |
| #0144A4 text on white | 8.88:1 | AAA | Lc 89.5 | Fine for body text |
| #0144A4 text on black | 2.36:1 | Fails | Lc -12.8 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C5DBFE
oklch(88.6% 0.054 259.7)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#659FFF
oklch(70.6% 0.154 260)
-
Step 500
500
#3783FF
oklch(63% 0.199 259.9)
-
Step 600
600
#0C69EE
oklch(55.6% 0.216 259.7)
-
Step 700
700
#0057CE
oklch(49.2% 0.198 259.7)
-
Step 800
800 (this color)
#0144A4
oklch(41.6% 0.166 259.8)
-
Step 900
900
#103D85
oklch(37.7% 0.13 259.9)
-
Step 950
950
#0B254E
oklch(27.1% 0.082 259.4)
#0144A4 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) | #0051A7 | 0.035 |
| Deuteranopia (no green cones) | #0043A2 | 0.004 |
| Tritanopia (no blue cones) | #005D6D | 0.127 |
| Achromatopsia (no color) | #4A4A4A | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0144A4
#0144A4
oklch(41.6% 0.166 259.8)
- #644600
#644600
oklch(41.6% 0.086 80.6)
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 #0144A4, closest first.
No curated palette has a color within ΔE 0.04 of #0144A4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.032
- Cobalt #1E488F ΔE 0.040
- Blue Blue #2242C7 ΔE 0.060
- Dusk Blue #26538D ΔE 0.064
- Light Navy #155084 ΔE 0.066
- Blueberry #464196 ΔE 0.066
- Twilight Blue #0A437A ΔE 0.070
- Deep Sea Blue #015482 ΔE 0.076
Use #0144A4 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.