#1A2D57
Closest named color: Marine (#042E60). oklch(30.6% 0.08 264), rgb(26, 45, 87).
Aa
White text reads best on this color (13.48:1).
About this color
#1A2D57 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.080 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.023 away. White text reads best on it, at 13.48:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.55:1 |
| White text | 13.48:1 |
Values
| HEX | #1A2D57 |
| RGB | rgb(26, 45, 87) |
| HSL | hsl(221, 54%, 22%) |
| OKLCH | oklch(30.6% 0.08 264) |
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 #1A2D57 | 13.48:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #1A2D57 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #1A2D57 text on white | 13.48:1 | AAA | Lc 99.8 | Preferred for body text |
| #1A2D57 text on black | 1.55:1 | Fails | Lc 0.0 | Not readable |
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 950.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFD
oklch(88.6% 0.052 263.7)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#709DFE
oklch(70.7% 0.151 264.1)
-
Step 500
500
#4B81FC
oklch(63.1% 0.192 263.9)
-
Step 600
600
#3066EC
oklch(55.6% 0.211 264.1)
-
Step 700
700
#2354CD
oklch(49.1% 0.195 263.9)
-
Step 800
800
#1E45A6
oklch(42.6% 0.163 264)
-
Step 900
900
#1D3C83
oklch(37.7% 0.125 263.7)
-
Step 950
950 (this color)
#1A2D57
oklch(30.6% 0.08 264)
#1A2D57 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) | #193159 | 0.012 |
| Deuteranopia (no green cones) | #0F2C56 | 0.013 |
| Tritanopia (no blue cones) | #00373D | 0.068 |
| Achromatopsia (no color) | #2E2E2E | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A2D57
#1A2D57
oklch(30.6% 0.08 264)
- #3E2C00
#3E2C00
oklch(30.6% 0.063 84.2)
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 #1A2D57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.023
- Prussian Blue #1D3557 ΔE 0.026
- Marine Blue #01386A ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.044
- Gunmetal #293241 ΔE 0.051
- Oxford Blue #1B263B ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.054
- Midnight Green #073B4C ΔE 0.055
Use #1A2D57 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.