#1C53A2
Closest named color: Dusk Blue (#26538D). oklch(45.3% 0.14 258.3), rgb(28, 83, 162).
Aa
White text reads best on this color (7.47:1).
About this color
#1C53A2 is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.140 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.035 away. White text reads best on it, at 7.47:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.80:1 |
| White text | 7.47:1 |
Values
| HEX | #1C53A2 |
| RGB | rgb(28, 83, 162) |
| HSL | hsl(215, 71%, 37%) |
| OKLCH | oklch(45.3% 0.14 258.3) |
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 #1C53A2 | 7.47:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #1C53A2 | 2.80:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #1C53A2 text on white | 7.47:1 | AAA | Lc 85.5 | Fine for body text |
| #1C53A2 text on black | 2.80:1 | Fails | Lc -16.5 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C7DBF8
oklch(88.6% 0.046 257.6)
-
Step 300
300
#A0C3F6
oklch(81% 0.082 257.7)
-
Step 400
400
#6CA1F1
oklch(70.6% 0.131 258.4)
-
Step 500
500
#4387ED
oklch(63% 0.168 258.5)
-
Step 600
600
#216EDB
oklch(55.5% 0.183 258.4)
-
Step 700
700
#135CBE
oklch(49.2% 0.169 258.1)
-
Step 800
800 (this color)
#1C53A2
oklch(45.3% 0.14 258.3)
-
Step 900
900
#18407A
oklch(37.7% 0.109 258.1)
-
Step 950
950
#0F2648
oklch(27.1% 0.07 258.2)
#1C53A2 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) | #255BA5 | 0.025 |
| Deuteranopia (no green cones) | #004FA0 | 0.019 |
| Tritanopia (no blue cones) | #006672 | 0.108 |
| Achromatopsia (no color) | #555555 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C53A2
#1C53A2
oklch(45.3% 0.14 258.3)
- #724E00
#724E00
oklch(45.2% 0.094 78.1)
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 #1C53A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.035
- Cobalt #1E488F ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.048
- Light Navy #155084 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.056
- Blueberry #464196 ΔE 0.061
- Twilight #4E518B ΔE 0.064
Use #1C53A2 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.