#1A2E40
Closest named color: Space Cadet (#2B2D42). oklch(29.3% 0.042 246.9), rgb(26, 46, 64).
Aa
White text reads best on this color (13.91:1).
About this color
#1A2E40 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.042 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.026 away. White text reads best on it, at 13.91:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.50:1 |
| White text | 13.91:1 |
Values
| HEX | #1A2E40 |
| RGB | rgb(26, 46, 64) |
| HSL | hsl(208, 42%, 18%) |
| OKLCH | oklch(29.3% 0.042 246.9) |
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 #1A2E40 | 13.91:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #1A2E40 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #1A2E40 text on white | 13.91:1 | AAA | Lc 100.5 | Preferred for body text |
| #1A2E40 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C4E0
oklch(80.8% 0.051 247.5)
-
Step 400
400
#78A6D0
oklch(70.8% 0.079 246.7)
-
Step 500
500
#538FC4
oklch(63.2% 0.102 246.9)
-
Step 600
600
#3578B0
oklch(55.6% 0.111 246.8)
-
Step 700
700
#276598
oklch(49.2% 0.103 246.9)
-
Step 800
800
#22527B
oklch(42.6% 0.086 247.3)
-
Step 900
900
#214463
oklch(37.6% 0.067 247.4)
-
Step 950
950 (this color)
#1A2E40
oklch(29.3% 0.042 246.9)
#1A2E40 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) | #262E41 | 0.017 |
| Deuteranopia (no green cones) | #222B40 | 0.014 |
| Tritanopia (no blue cones) | #063234 | 0.035 |
| Achromatopsia (no color) | #2C2C2C | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A2E40
#1A2E40
oklch(29.3% 0.042 246.9)
- #3A2814
#3A2814
oklch(29.3% 0.042 67.9)
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 #1A2E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.026
- Oxford Blue #1B263B ΔE 0.027
- Gunmetal #293241 ΔE 0.027
- Dark #1B2431 ΔE 0.039
- Midnight Green #073B4C ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.044
- Jet #212529 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.046
Use #1A2E40 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.