#1E2857
Closest named color: Marine (#042E60). oklch(29.6% 0.085 271.3), rgb(30, 40, 87).
Aa
White text reads best on this color (14.03:1).
About this color
#1E2857 is a dark, moderately saturated blue. In OKLCH its lightness is 30%, its chroma 0.085 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.030 away. White text reads best on it, at 14.03:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.49:1 |
| White text | 14.03:1 |
Values
| HEX | #1E2857 |
| RGB | rgb(30, 40, 87) |
| HSL | hsl(229, 49%, 23%) |
| OKLCH | oklch(29.6% 0.085 271.3) |
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 #1E2857 | 14.03:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #1E2857 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #1E2857 text on white | 14.03:1 | AAA | Lc 100.5 | Preferred for body text |
| #1E2857 text on black | 1.49:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FE
oklch(93.5% 0.029 271.1)
-
Step 200
200
#CBD8FF
oklch(88.5% 0.056 270.7)
-
Step 300
300
#AABEFF
oklch(81% 0.095 271)
-
Step 400
400
#7F99FF
oklch(70.8% 0.152 271.3)
-
Step 500
500
#607AFF
oklch(63% 0.199 271.3)
-
Step 600
600
#495DF4
oklch(55.7% 0.225 271.2)
-
Step 700
700
#3B4BD4
oklch(49.1% 0.208 271.1)
-
Step 800
800
#313FAC
oklch(42.8% 0.173 271.3)
-
Step 900
900
#2A3788
oklch(37.7% 0.135 271.4)
-
Step 950
950 (this color)
#1E2857
oklch(29.6% 0.085 271.3)
#1E2857 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) | #0F2E59 | 0.022 |
| Deuteranopia (no green cones) | #042956 | 0.026 |
| Tritanopia (no blue cones) | #00333B | 0.074 |
| Achromatopsia (no color) | #2C2C2C | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E2857
#1E2857
oklch(29.6% 0.085 271.3)
- #382B00
#382B00
oklch(29.5% 0.06 90.9)
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 #1E2857, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.049
- Oxford Blue #1B263B ΔE 0.052
- Marine Blue #01386A ΔE 0.055
- Midnight Blue #191970 ΔE 0.059
- Gunmetal #293241 ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.068
Use #1E2857 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.