#1C4068
Closest named color: Twilight Blue (#0A437A). oklch(36.6% 0.081 253), rgb(28, 64, 104).
Aa
White text reads best on this color (10.59:1).
About this color
#1C4068 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.081 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.031 away. White text reads best on it, at 10.59:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.98:1 |
| White text | 10.59:1 |
Values
| HEX | #1C4068 |
| RGB | rgb(28, 64, 104) |
| HSL | hsl(212, 58%, 26%) |
| OKLCH | oklch(36.6% 0.081 253) |
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 #1C4068 | 10.59:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #1C4068 | 1.98:1 | Fails | Lc 9.6 | Not readable |
| #1C4068 text on white | 10.59:1 | AAA | Lc 94.3 | Preferred for body text |
| #1C4068 text on black | 1.98:1 | Fails | Lc -8.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBEF
oklch(88.5% 0.033 252.5)
-
Step 300
300
#A5C4E8
oklch(81% 0.061 252.4)
-
Step 400
400
#74A4DC
oklch(70.7% 0.097 252.9)
-
Step 500
500
#4F8CD2
oklch(63% 0.124 253.2)
-
Step 600
600
#3075BF
oklch(55.6% 0.134 252.8)
-
Step 700
700
#2262A5
oklch(49.1% 0.125 252.7)
-
Step 800
800
#1F5086
oklch(42.7% 0.104 253.3)
-
Step 900
900 (this color)
#1C4068
oklch(36.6% 0.081 253)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#1C4068 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) | #2E436A | 0.024 |
| Deuteranopia (no green cones) | #233B67 | 0.016 |
| Tritanopia (no blue cones) | #00494F | 0.062 |
| Achromatopsia (no color) | #3F3F3F | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C4068
#1C4068
oklch(36.6% 0.081 253)
- #573700
#573700
oklch(36.6% 0.078 73.2)
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 #1C4068, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.031
- Marine Blue #01386A ΔE 0.034
- Dark Grey Blue #29465B ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.047
- Charcoal #264653 ΔE 0.047
- Midnight Green #073B4C ΔE 0.054
- Light Navy #155084 ΔE 0.061
Use #1C4068 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.