#1C4E7C
Closest named color: Light Navy (#155084). oklch(41.4% 0.094 249.6), rgb(28, 78, 124).
Aa
White text reads best on this color (8.64:1).
About this color
#1C4E7C is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.094 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.014 away. White text reads best on it, at 8.64:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.43:1 |
| White text | 8.64:1 |
Values
| HEX | #1C4E7C |
| RGB | rgb(28, 78, 124) |
| HSL | hsl(209, 63%, 30%) |
| OKLCH | oklch(41.4% 0.094 249.6) |
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 #1C4E7C | 8.64:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #1C4E7C | 2.43:1 | Fails | Lc 14.6 | Not readable |
| #1C4E7C text on white | 8.64:1 | AAA | Lc 89.4 | Fine for body text |
| #1C4E7C text on black | 2.43:1 | Fails | Lc -12.9 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBED
oklch(88.4% 0.031 249.7)
-
Step 300
300
#A6C4E3
oklch(80.9% 0.055 249.4)
-
Step 400
400
#76A5D5
oklch(70.7% 0.087 249.7)
-
Step 500
500
#508ECA
oklch(63.1% 0.111 249.3)
-
Step 600
600
#3277B7
oklch(55.6% 0.121 249.5)
-
Step 700
700
#24649E
oklch(49.2% 0.113 249.5)
-
Step 800
800 (this color)
#1C4E7C
oklch(41.4% 0.094 249.6)
-
Step 900
900
#204467
oklch(37.8% 0.073 249.8)
-
Step 950
950
#13283C
oklch(27% 0.046 248.8)
#1C4E7C 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) | #39507E | 0.031 |
| Deuteranopia (no green cones) | #2B487B | 0.020 |
| Tritanopia (no blue cones) | #00595F | 0.069 |
| Achromatopsia (no color) | #4C4C4C | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C4E7C
#1C4E7C
oklch(41.4% 0.094 249.6)
- #6A4100
#6A4100
oklch(41.4% 0.09 69.7)
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 #1C4E7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.014
- Deep Sea Blue #015482 ΔE 0.020
- Dusk Blue #26538D ΔE 0.032
- Twilight Blue #0A437A ΔE 0.037
- Cobalt #1E488F ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.056
- YInMn Blue #415A77 ΔE 0.059
Use #1C4E7C 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.