#1856A6
Closest named color: Dusk Blue (#26538D). oklch(46.1% 0.143 257), rgb(24, 86, 166).
Aa
White text reads best on this color (7.19:1).
About this color
#1856A6 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.143 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.040 away. White text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.92:1 |
| White text | 7.19:1 |
Values
| HEX | #1856A6 |
| RGB | rgb(24, 86, 166) |
| HSL | hsl(214, 75%, 37%) |
| OKLCH | oklch(46.1% 0.143 257) |
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 #1856A6 | 7.19:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #1856A6 | 2.92:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #1856A6 text on white | 7.19:1 | AAA | Lc 84.4 | Fine for body text |
| #1856A6 text on black | 2.92:1 | Fails | Lc -17.5 | 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 700.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#C9DBF3
oklch(88.5% 0.038 255.6)
-
Step 300
300
#A4C3EE
oklch(80.9% 0.07 256.6)
-
Step 400
400
#73A2E5
oklch(70.6% 0.111 257.3)
-
Step 500
500
#4D8ADD
oklch(63.1% 0.141 256.6)
-
Step 600
600
#3072CB
oklch(55.7% 0.153 257)
-
Step 700
700 (this color)
#1856A6
oklch(46.1% 0.143 257)
-
Step 800
800
#1E4E8E
oklch(42.7% 0.118 256.8)
-
Step 900
900
#1E4172
oklch(37.6% 0.093 257.3)
-
Step 950
950
#132742
oklch(27.1% 0.057 256.4)
#1856A6 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) | #285EA9 | 0.027 |
| Deuteranopia (no green cones) | #0051A4 | 0.019 |
| Tritanopia (no blue cones) | #006976 | 0.107 |
| Achromatopsia (no color) | #575757 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1856A6
#1856A6
oklch(46.1% 0.143 257)
- #765000
#765000
oklch(46.1% 0.096 77.2)
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 #1856A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.048
- Cobalt #1E488F ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.054
- Light Navy #155084 ΔE 0.057
- Mid Blue #276AB3 ΔE 0.060
- Peacock Blue #016795 ΔE 0.060
- Deep Sea Blue #015482 ΔE 0.061
Use #1856A6 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.