#0145AC
Closest named color: Sapphire (#2138AB). oklch(42.5% 0.176 260.3), rgb(1, 69, 172).
Aa
White text reads best on this color (8.57:1).
About this color
#0145AC is a dark, vivid blue. In OKLCH its lightness is 43%, its chroma 0.176 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.031 away. White text reads best on it, at 8.57:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | vivid (0.176) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.44:1 |
| White text | 8.57:1 |
Values
| HEX | #0145AC |
| RGB | rgb(1, 69, 172) |
| HSL | hsl(216, 99%, 34%) |
| OKLCH | oklch(42.5% 0.176 260.3) |
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 #0145AC | 8.57:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #0145AC | 2.44:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #0145AC text on white | 8.57:1 | AAA | Lc 88.6 | Fine for body text |
| #0145AC text on black | 2.44:1 | Fails | Lc -13.6 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#679FFF
oklch(70.7% 0.153 260.6)
-
Step 500
500
#3A83FF
oklch(63.1% 0.199 260.3)
-
Step 600
600
#0466F5
oklch(55.5% 0.228 260.4)
-
Step 700
700
#0055D1
oklch(49.1% 0.204 260.3)
-
Step 800
800 (this color)
#0145AC
oklch(42.5% 0.176 260.3)
-
Step 900
900
#0E3C88
oklch(37.6% 0.136 260.3)
-
Step 950
950
#0A2450
oklch(27% 0.087 260.3)
#0145AC 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) | #0054AF | 0.039 |
| Deuteranopia (no green cones) | #0045AA | 0.003 |
| Tritanopia (no blue cones) | #006071 | 0.134 |
| Achromatopsia (no color) | #4C4C4C | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0145AC
#0145AC
oklch(42.5% 0.176 260.3)
- #674800
#674800
oklch(42.5% 0.088 80.4)
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 #0145AC, closest first.
No curated palette has a color within ΔE 0.04 of #0145AC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.031
- Blue Blue #2242C7 ΔE 0.047
- Cobalt #1E488F ΔE 0.050
- Blueberry #464196 ΔE 0.070
- Dusk Blue #26538D ΔE 0.070
- Majorelle Blue #3F37C9 ΔE 0.071
- Light Navy #155084 ΔE 0.075
- Twilight Blue #0A437A ΔE 0.083
Use #0145AC 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.