#1C4EAE
Closest named color: Blue Blue (#2242C7). oklch(45.1% 0.163 261.7), rgb(28, 78, 174).
Aa
White text reads best on this color (7.63:1).
About this color
#1C4EAE is a medium-dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.163 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.048 away. White text reads best on it, at 7.63:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.75:1 |
| White text | 7.63:1 |
Values
| HEX | #1C4EAE |
| RGB | rgb(28, 78, 174) |
| HSL | hsl(219, 72%, 40%) |
| OKLCH | oklch(45.1% 0.163 261.7) |
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 #1C4EAE | 7.63:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #1C4EAE | 2.75:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #1C4EAE text on white | 7.63:1 | AAA | Lc 85.9 | Fine for body text |
| #1C4EAE text on black | 2.75:1 | Fails | Lc -16.1 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EAFD
oklch(93.5% 0.028 263.4)
-
Step 200
200
#C6DAFD
oklch(88.5% 0.053 261.7)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6A9EFF
oklch(70.6% 0.153 261.9)
-
Step 500
500
#4282FD
oklch(63% 0.195 261.8)
-
Step 600
600
#2368EC
oklch(55.6% 0.211 261.7)
-
Step 700
700
#1655CE
oklch(49.1% 0.198 261.8)
-
Step 800
800 (this color)
#1C4EAE
oklch(45.1% 0.163 261.7)
-
Step 900
900
#183D84
oklch(37.8% 0.127 261.8)
-
Step 950
950
#0F244D
oklch(27% 0.081 262.1)
#1C4EAE 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) | #005AB1 | 0.031 |
| Deuteranopia (no green cones) | #004DAC | 0.014 |
| Tritanopia (no blue cones) | #006676 | 0.126 |
| Achromatopsia (no color) | #535353 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C4EAE
#1C4EAE
oklch(45.1% 0.163 261.7)
- #6F4F00
#6F4F00
oklch(45% 0.093 81.6)
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 #1C4EAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.048
- Cobalt #1E488F ΔE 0.052
- Sapphire #2138AB ΔE 0.052
- Dusk Blue #26538D ΔE 0.057
- Blueberry #464196 ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.069
- Majorelle Blue #3F37C9 ΔE 0.070
- Light Navy #155084 ΔE 0.070
Use #1C4EAE 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.