#1A489A
Closest named color: Cobalt (#1E488F). oklch(42.1% 0.143 261), rgb(26, 72, 154).
Aa
White text reads best on this color (8.61:1).
About this color
#1A489A is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.143 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.018 away. White text reads best on it, at 8.61:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.43:1 |
| White text | 8.61:1 |
Values
| HEX | #1A489A |
| RGB | rgb(26, 72, 154) |
| HSL | hsl(218, 71%, 35%) |
| OKLCH | oklch(42.1% 0.143 261) |
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 #1A489A | 8.61:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #1A489A | 2.43:1 | Fails | Lc 14.9 | Not readable |
| #1A489A text on white | 8.61:1 | AAA | Lc 89.1 | Fine for body text |
| #1A489A text on black | 2.43:1 | Fails | Lc -13.1 | 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
#C8DAF9
oklch(88.5% 0.047 261.4)
-
Step 300
300
#A2C2F7
oklch(80.9% 0.083 260.4)
-
Step 400
400
#70A0F4
oklch(70.8% 0.134 261)
-
Step 500
500
#4A85EF
oklch(63% 0.171 261.1)
-
Step 600
600
#2C6CDE
oklch(55.6% 0.186 260.9)
-
Step 700
700
#1F59C1
oklch(49% 0.174 261.1)
-
Step 800
800 (this color)
#1A489A
oklch(42.1% 0.143 261)
-
Step 900
900
#1C3F7C
oklch(37.8% 0.111 260.6)
-
Step 950
950
#112549
oklch(27% 0.072 261.1)
#1A489A 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) | #0C529D | 0.027 |
| Deuteranopia (no green cones) | #004698 | 0.015 |
| Tritanopia (no blue cones) | #005C6A | 0.110 |
| Achromatopsia (no color) | #4C4C4C | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A489A
#1A489A
oklch(42.1% 0.143 261)
- #654700
#654700
oklch(42% 0.087 81)
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 #1A489A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.018
- Dusk Blue #26538D ΔE 0.042
- Light Navy #155084 ΔE 0.046
- Sapphire #2138AB ΔE 0.047
- Blueberry #464196 ΔE 0.051
- Twilight Blue #0A437A ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.061
Use #1A489A 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.