#0F54AB
Closest named color: Dusk Blue (#26538D). oklch(45.9% 0.154 257.4), rgb(15, 84, 171).
Aa
White text reads best on this color (7.30:1).
About this color
#0F54AB is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.154 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.049 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #0F54AB |
| RGB | rgb(15, 84, 171) |
| HSL | hsl(213, 84%, 36%) |
| OKLCH | oklch(45.9% 0.154 257.4) |
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 #0F54AB | 7.30:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #0F54AB | 2.87:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #0F54AB text on white | 7.30:1 | AAA | Lc 84.7 | Fine for body text |
| #0F54AB text on black | 2.87:1 | Fails | Lc -17.3 | 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
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9CC3FB
oklch(80.9% 0.09 257.4)
-
Step 400
400
#64A1F9
oklch(70.6% 0.144 257.6)
-
Step 500
500
#3587F6
oklch(63.2% 0.184 257.3)
-
Step 600
600
#016DE5
oklch(55.6% 0.2 257.4)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800 (this color)
#0F54AB
oklch(45.9% 0.154 257.4)
-
Step 900
900
#0E3F7F
oklch(37.6% 0.12 257.3)
-
Step 950
950
#0B264B
oklch(27.1% 0.076 257.3)
#0F54AB 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) | #1A5DAE | 0.027 |
| Deuteranopia (no green cones) | #0050A9 | 0.013 |
| Tritanopia (no blue cones) | #006977 | 0.116 |
| Achromatopsia (no color) | #565656 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F54AB
#0F54AB
oklch(45.9% 0.154 257.4)
- #754F00
#754F00
oklch(45.8% 0.096 76.9)
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 #0F54AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.049
- Cobalt #1E488F ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.059
- Blue Blue #2242C7 ΔE 0.062
- Light Navy #155084 ΔE 0.063
- Light Navy Blue #2E5A88 ΔE 0.065
- Mid Blue #276AB3 ΔE 0.065
- Sapphire #2138AB ΔE 0.067
Use #0F54AB 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.