#1A2B50
Closest named color: Marine (#042E60). oklch(29.6% 0.071 264), rgb(26, 43, 80).
Aa
White text reads best on this color (13.95:1).
About this color
#1A2B50 is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.071 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.032 away. White text reads best on it, at 13.95:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.50:1 |
| White text | 13.95:1 |
Values
| HEX | #1A2B50 |
| RGB | rgb(26, 43, 80) |
| HSL | hsl(221, 51%, 21%) |
| OKLCH | oklch(29.6% 0.071 264) |
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 #1A2B50 | 13.95:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #1A2B50 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #1A2B50 text on white | 13.95:1 | AAA | Lc 100.4 | Preferred for body text |
| #1A2B50 text on black | 1.50:1 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFB
oklch(93.6% 0.025 265.6)
-
Step 200
200
#CADAF9
oklch(88.6% 0.046 263.7)
-
Step 300
300
#A5C1F8
oklch(81% 0.084 263.6)
-
Step 400
400
#759EF4
oklch(70.6% 0.134 263.9)
-
Step 500
500
#5283F0
oklch(63% 0.172 263.9)
-
Step 600
600
#386ADF
oklch(55.7% 0.187 263.9)
-
Step 700
700
#2B57C2
oklch(49.1% 0.175 264.1)
-
Step 800
800
#24489D
oklch(42.7% 0.145 264)
-
Step 900
900
#223D7C
oklch(37.6% 0.112 264.3)
-
Step 950
950 (this color)
#1A2B50
oklch(29.6% 0.071 264)
#1A2B50 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) | #1A2F51 | 0.013 |
| Deuteranopia (no green cones) | #132A4F | 0.010 |
| Tritanopia (no blue cones) | #003339 | 0.060 |
| Achromatopsia (no color) | #2C2C2C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A2B50
#1A2B50
oklch(29.6% 0.071 264)
- #3B2900
#3B2900
oklch(29.5% 0.061 82.9)
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 #1A2B50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.037
- Oxford Blue #1B263B ΔE 0.039
- Gunmetal #293241 ΔE 0.046
- Midnight Green #073B4C ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.056
- Marine Blue #01386A ΔE 0.056
Use #1A2B50 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.