#1A53AA
Closest named color: Dusk Blue (#26538D). oklch(45.8% 0.152 259.2), rgb(26, 83, 170).
Aa
White text reads best on this color (7.33:1).
About this color
#1A53AA is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.152 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.047 away. White text reads best on it, at 7.33:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.86:1 |
| White text | 7.33:1 |
Values
| HEX | #1A53AA |
| RGB | rgb(26, 83, 170) |
| HSL | hsl(216, 73%, 38%) |
| OKLCH | oklch(45.8% 0.152 259.2) |
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 #1A53AA | 7.33:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #1A53AA | 2.86:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #1A53AA text on white | 7.33:1 | AAA | Lc 85.0 | Fine for body text |
| #1A53AA text on black | 2.86:1 | Fails | Lc -17.1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DBFA
oklch(88.6% 0.048 258)
-
Step 300
300
#9EC2FA
oklch(80.8% 0.089 259.1)
-
Step 400
400
#69A0F8
oklch(70.6% 0.142 259.4)
-
Step 500
500
#3F86F5
oklch(63.2% 0.181 259.2)
-
Step 600
600
#1B6CE4
oklch(55.6% 0.198 259.3)
-
Step 700
700
#0C59C6
oklch(49.1% 0.184 259.3)
-
Step 800
800 (this color)
#1A53AA
oklch(45.8% 0.152 259.2)
-
Step 900
900
#153F7F
oklch(37.8% 0.118 259)
-
Step 950
950
#0E254A
oklch(26.9% 0.075 259.5)
#1A53AA 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) | #1A5DAD | 0.027 |
| Deuteranopia (no green cones) | #0050A8 | 0.015 |
| Tritanopia (no blue cones) | #006876 | 0.116 |
| Achromatopsia (no color) | #565656 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A53AA
#1A53AA
oklch(45.8% 0.152 259.2)
- #735000
#735000
oklch(45.7% 0.095 79.5)
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 #1A53AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.047
- Cobalt #1E488F ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.057
- Blue Blue #2242C7 ΔE 0.061
- Light Navy #155084 ΔE 0.063
- Light Navy Blue #2E5A88 ΔE 0.064
- Blueberry #464196 ΔE 0.065
- Sapphire #2138AB ΔE 0.066
Use #1A53AA 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.