#0F4CAC
Closest named color: Sapphire (#2138AB). oklch(44.2% 0.165 260), rgb(15, 76, 172).
Aa
White text reads best on this color (7.92:1).
About this color
#0F4CAC is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.165 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Sapphire (#2138AB), ΔE 0.046 away. White text reads best on it, at 7.92:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Sapphire (#2138AB) |
| Black text | 2.64:1 |
| White text | 7.92:1 |
Values
| HEX | #0F4CAC |
| RGB | rgb(15, 76, 172) |
| HSL | hsl(217, 84%, 37%) |
| OKLCH | oklch(44.2% 0.165 260) |
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 #0F4CAC | 7.92:1 | AAA | Lc -91.5 | Preferred for body text |
| Black text on #0F4CAC | 2.64:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #0F4CAC text on white | 7.92:1 | AAA | Lc 86.8 | Fine for body text |
| #0F4CAC text on black | 2.64:1 | Fails | Lc -15.3 | Dividers and decoration only |
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
#C5DAFD
oklch(88.4% 0.054 260.6)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#669FFF
oklch(70.7% 0.154 260.3)
-
Step 500
500
#3983FE
oklch(63% 0.198 260.1)
-
Step 600
600
#1269ED
oklch(55.6% 0.214 260)
-
Step 700
700
#0256CF
oklch(49.1% 0.2 260.1)
-
Step 800
800 (this color)
#0F4CAC
oklch(44.2% 0.165 260)
-
Step 900
900
#123D84
oklch(37.6% 0.129 260.1)
-
Step 950
950
#0C254D
oklch(27.1% 0.08 259.5)
#0F4CAC 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) | #0058AF | 0.031 |
| Deuteranopia (no green cones) | #004BAA | 0.007 |
| Tritanopia (no blue cones) | #006474 | 0.126 |
| Achromatopsia (no color) | #515151 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F4CAC
#0F4CAC
oklch(44.2% 0.165 260)
- #6D4C00
#6D4C00
oklch(44.1% 0.091 79.9)
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 #0F4CAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sapphire #2138AB ΔE 0.046
- Cobalt #1E488F ΔE 0.048
- Blue Blue #2242C7 ΔE 0.049
- Dusk Blue #26538D ΔE 0.058
- Blueberry #464196 ΔE 0.065
- Light Navy #155084 ΔE 0.068
- Majorelle Blue #3F37C9 ΔE 0.073
- Denim Blue #3B5B92 ΔE 0.075
Use #0F4CAC 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.