#1A418E
Closest named color: Cobalt (#1E488F). oklch(39.6% 0.135 262), rgb(26, 65, 142).
Aa
White text reads best on this color (9.58:1).
About this color
#1A418E is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.135 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.020 away. White text reads best on it, at 9.58:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #1A418E |
| RGB | rgb(26, 65, 142) |
| HSL | hsl(220, 69%, 33%) |
| OKLCH | oklch(39.6% 0.135 262) |
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 #1A418E | 9.58:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #1A418E | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #1A418E text on white | 9.58:1 | AAA | Lc 91.7 | Preferred for body text |
| #1A418E text on black | 2.19:1 | Fails | Lc -10.7 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEAFE
oklch(93.5% 0.03 262.5)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6B9EFF
oklch(70.7% 0.153 262.2)
-
Step 500
500
#4282FF
oklch(63.2% 0.198 262)
-
Step 600
600
#1D65F4
oklch(55.6% 0.226 262.1)
-
Step 700
700
#0F53D5
oklch(49.2% 0.21 261.9)
-
Step 800
800
#1045AC
oklch(42.8% 0.174 261.9)
-
Step 900
900 (this color)
#1A418E
oklch(39.6% 0.135 262)
-
Step 950
950
#0D2450
oklch(27.1% 0.086 261.8)
#1A418E 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) | #064B91 | 0.027 |
| Deuteranopia (no green cones) | #00408C | 0.015 |
| Tritanopia (no blue cones) | #005461 | 0.105 |
| Achromatopsia (no color) | #454545 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A418E
#1A418E
oklch(39.6% 0.135 262)
- #5C4100
#5C4100
oklch(39.5% 0.081 81.8)
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 #1A418E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.020
- Twilight Blue #0A437A ΔE 0.037
- Light Navy #155084 ΔE 0.048
- Sapphire #2138AB ΔE 0.052
- Dusk Blue #26538D ΔE 0.055
- Blueberry #464196 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
- Deep Sea Blue #015482 ΔE 0.061
Use #1A418E 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.