#1548B6
Closest named color: Blue Blue (#2242C7). oklch(44.4% 0.182 262.7), rgb(21, 72, 182).
Aa
White text reads best on this color (7.97:1).
About this color
#1548B6 is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.182 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.030 away. White text reads best on it, at 7.97:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #1548B6 |
| RGB | rgb(21, 72, 182) |
| HSL | hsl(221, 79%, 40%) |
| OKLCH | oklch(44.4% 0.182 262.7) |
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 #1548B6 | 7.97:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #1548B6 | 2.63:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #1548B6 text on white | 7.97:1 | AAA | Lc 86.9 | Fine for body text |
| #1548B6 text on black | 2.63:1 | Fails | Lc -15.2 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C6DAFF
oklch(88.5% 0.056 262.8)
-
Step 300
300
#A0C1FF
oklch(80.9% 0.095 262.7)
-
Step 400
400
#6C9EFF
oklch(70.7% 0.152 262.5)
-
Step 500
500
#4481FF
oklch(63% 0.198 262.7)
-
Step 600
600
#1C62FA
oklch(55.5% 0.237 262.7)
-
Step 700
700
#0F50DA
oklch(49.1% 0.22 262.6)
-
Step 800
800 (this color)
#1548B6
oklch(44.4% 0.182 262.7)
-
Step 900
900
#143A8B
oklch(37.6% 0.142 262.7)
-
Step 950
950
#0D2352
oklch(27.1% 0.091 262.9)
#1548B6 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) | #0058BA | 0.039 |
| Deuteranopia (no green cones) | #004AB4 | 0.009 |
| Tritanopia (no blue cones) | #006478 | 0.138 |
| Achromatopsia (no color) | #515151 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1548B6
#1548B6
oklch(44.4% 0.182 262.7)
- #6C4E00
#6C4E00
oklch(44.4% 0.091 83)
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 #1548B6, closest first.
No curated palette has a color within ΔE 0.04 of #1548B6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.030
- Sapphire #2138AB ΔE 0.040
- Majorelle Blue #3F37C9 ΔE 0.057
- Cobalt #1E488F ΔE 0.063
- Blueberry #464196 ΔE 0.072
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Dusk Blue #26538D ΔE 0.076
- Blurple #5539CC ΔE 0.083
Use #1548B6 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.