#241EA3
Closest named color: Ultramarine (#2000B1). oklch(36.1% 0.2 272.1), rgb(36, 30, 163).
Aa
White text reads best on this color (11.73:1).
About this color
#241EA3 is a dark, vivid blue. In OKLCH its lightness is 36%, its chroma 0.200 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Ultramarine (#2000B1), ΔE 0.033 away. White text reads best on it, at 11.73:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | vivid (0.200) |
| Temperature | cool |
| Nearest name | Ultramarine (#2000B1) |
| Black text | 1.78:1 |
| White text | 11.73:1 |
Values
| HEX | #241EA3 |
| RGB | rgb(36, 30, 163) |
| HSL | hsl(243, 69%, 38%) |
| OKLCH | oklch(36.1% 0.2 272.1) |
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 #241EA3 | 11.73:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #241EA3 | 1.78:1 | Fails | Lc 8.3 | Not readable |
| #241EA3 text on white | 11.73:1 | AAA | Lc 95.6 | Preferred for body text |
| #241EA3 text on black | 1.78:1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CCD8FF
oklch(88.6% 0.055 271.8)
-
Step 300
300
#ABBDFF
oklch(80.9% 0.096 272.3)
-
Step 400
400
#8098FF
oklch(70.7% 0.153 272.1)
-
Step 500
500
#637AFF
oklch(63.2% 0.198 272.1)
-
Step 600
600
#4A56FF
oklch(55.5% 0.246 272.2)
-
Step 700
700
#3C28FF
oklch(49.1% 0.288 272.2)
-
Step 800
800
#301BD7
oklch(42.7% 0.256 272.1)
-
Step 900
900 (this color)
#241EA3
oklch(36.1% 0.2 272.1)
-
Step 950
950
#151962
oklch(27% 0.126 272)
#241EA3 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) | #003EA7 | 0.062 |
| Deuteranopia (no green cones) | #0031A1 | 0.037 |
| Tritanopia (no blue cones) | #004861 | 0.154 |
| Achromatopsia (no color) | #383838 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #241EA3
#241EA3
oklch(36.1% 0.2 272.1)
- #4B3C00
#4B3C00
oklch(36.2% 0.074 93)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #241EA3
These curated palettes and gradients contain exactly #241EA3. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ultramarine #2000B1 ΔE 0.033
- Indigo Blue #3A18B1 ΔE 0.040
- Royal #0C1793 ΔE 0.044
- Cobalt Blue #030AA7 ΔE 0.044
- Sapphire #2138AB ΔE 0.051
- Imperial Purple #480CA8 ΔE 0.063
- True Blue #010FCC ΔE 0.074
- Medium Blue #0000CD ΔE 0.077
Use #241EA3 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.