#1E4677
Closest named color: Twilight Blue (#0A437A). oklch(39.2% 0.095 255), rgb(30, 70, 119).
Aa
White text reads best on this color (9.55:1).
About this color
#1E4677 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.095 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.018 away. White text reads best on it, at 9.55:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.19:1 |
| White text | 9.55:1 |
Values
| HEX | #1E4677 |
| RGB | rgb(30, 70, 119) |
| HSL | hsl(213, 60%, 29%) |
| OKLCH | oklch(39.2% 0.095 255) |
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 #1E4677 | 9.55:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #1E4677 | 2.19:1 | Fails | Lc 12.1 | Not readable |
| #1E4677 text on white | 9.55:1 | AAA | Lc 91.8 | Preferred for body text |
| #1E4677 text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C8DBF3
oklch(88.5% 0.039 254.3)
-
Step 300
300
#A2C3EE
oklch(80.8% 0.071 255.2)
-
Step 400
400
#6FA3E6
oklch(70.7% 0.113 255.2)
-
Step 500
500
#468BDF
oklch(63.2% 0.145 254.7)
-
Step 600
600
#2573CD
oklch(55.7% 0.158 255)
-
Step 700
700
#1760B1
oklch(49.2% 0.146 254.9)
-
Step 800
800
#164E8F
oklch(42.6% 0.122 255.1)
-
Step 900
900 (this color)
#1E4677
oklch(39.2% 0.095 255)
-
Step 950
950
#102743
oklch(27% 0.06 254.6)
#1E4677 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) | #2F4A79 | 0.023 |
| Deuteranopia (no green cones) | #214176 | 0.015 |
| Tritanopia (no blue cones) | #005158 | 0.073 |
| Achromatopsia (no color) | #454545 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1E4677
#1E4677
oklch(39.2% 0.095 255)
- #5F3E00
#5F3E00
oklch(39.2% 0.083 75.1)
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 #1E4677, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.018
- Light Navy #155084 ΔE 0.033
- Cobalt #1E488F ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.049
- Dusk Blue #26538D ΔE 0.051
- Marine Blue #01386A ΔE 0.053
- Charcoal #264653 ΔE 0.063
Use #1E4677 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.