#1A4397
Closest named color: Cobalt (#1E488F). oklch(40.8% 0.146 262.4), rgb(26, 67, 151).
Aa
White text reads best on this color (9.15:1).
About this color
#1A4397 is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.146 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 9.15:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.146) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #1A4397 |
| RGB | rgb(26, 67, 151) |
| HSL | hsl(220, 71%, 35%) |
| OKLCH | oklch(40.8% 0.146 262.4) |
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 #1A4397 | 9.15:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #1A4397 | 2.29:1 | Fails | Lc 13.4 | Not readable |
| #1A4397 text on white | 9.15:1 | AAA | Lc 90.6 | Preferred for body text |
| #1A4397 text on black | 2.29:1 | Fails | Lc -11.8 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C9DAF9
oklch(88.5% 0.047 262.5)
-
Step 300
300
#A3C1F8
oklch(80.8% 0.085 262.3)
-
Step 400
400
#729FF5
oklch(70.7% 0.136 262.5)
-
Step 500
500
#4D84F1
oklch(63.1% 0.174 262.4)
-
Step 600
600
#316BE0
oklch(55.7% 0.189 262.3)
-
Step 700
700
#2458C2
oklch(49.1% 0.175 262.3)
-
Step 800
800 (this color)
#1A4397
oklch(40.8% 0.146 262.4)
-
Step 900
900
#1E3E7D
oklch(37.7% 0.114 262.2)
-
Step 950
950
#122549
oklch(27% 0.071 261.9)
#1A4397 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) | #004E9A | 0.029 |
| Deuteranopia (no green cones) | #004395 | 0.014 |
| Tritanopia (no blue cones) | #005866 | 0.113 |
| Achromatopsia (no color) | #484848 | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A4397
#1A4397
oklch(40.8% 0.146 262.4)
- #604400
#604400
oklch(40.7% 0.084 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 #1A4397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.020
- Sapphire #2138AB ΔE 0.042
- Twilight Blue #0A437A ΔE 0.050
- Light Navy #155084 ΔE 0.051
- Dusk Blue #26538D ΔE 0.052
- Blueberry #464196 ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.059
- Deep Sea Blue #015482 ΔE 0.064
Use #1A4397 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.