#1A3E52
Closest named color: Dark Blue Grey (#1F3B4D). oklch(34.7% 0.054 235.6), rgb(26, 62, 82).
Aa
White text reads best on this color (11.32:1).
About this color
#1A3E52 is a dark, muted blue. In OKLCH its lightness is 35%, its chroma 0.054 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.012 away. White text reads best on it, at 11.32:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.85:1 |
| White text | 11.32:1 |
Values
| HEX | #1A3E52 |
| RGB | rgb(26, 62, 82) |
| HSL | hsl(201, 52%, 21%) |
| OKLCH | oklch(34.7% 0.054 235.6) |
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 #1A3E52 | 11.32:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #1A3E52 | 1.85:1 | Fails | Lc 7.9 | Not readable |
| #1A3E52 text on white | 11.32:1 | AAA | Lc 96.0 | Preferred for body text |
| #1A3E52 text on black | 1.85:1 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A8C5D8
oklch(80.8% 0.041 236.8)
-
Step 400
400
#79A8C4
oklch(70.8% 0.065 235.1)
-
Step 500
500
#5491B5
oklch(63% 0.083 236.1)
-
Step 600
600
#377BA1
oklch(55.6% 0.09 236.1)
-
Step 700
700
#28688A
oklch(49.2% 0.084 235.5)
-
Step 800
800
#235570
oklch(42.8% 0.07 235.3)
-
Step 900
900 (this color)
#1A3E52
oklch(34.7% 0.054 235.6)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#1A3E52 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) | #353E53 | 0.034 |
| Deuteranopia (no green cones) | #2D3852 | 0.028 |
| Tritanopia (no blue cones) | #004345 | 0.037 |
| Achromatopsia (no color) | #3A3A3A | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A3E52
#1A3E52
oklch(34.7% 0.054 235.6)
- #4F321D
#4F321D
oklch(34.7% 0.054 55.8)
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 #1A3E52, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.012
- Midnight Green #073B4C ΔE 0.021
- Charcoal #264653 ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.034
- Onyx #343A40 ΔE 0.041
- Gunmetal #293241 ΔE 0.044
- Marine Blue #01386A ΔE 0.053
Use #1A3E52 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.