#1047A2
Closest named color: Cobalt (#1E488F). oklch(42.3% 0.158 260.4), rgb(16, 71, 162).
Aa
White text reads best on this color (8.58:1).
About this color
#1047A2 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.158 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.032 away. White text reads best on it, at 8.58:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #1047A2 |
| RGB | rgb(16, 71, 162) |
| HSL | hsl(217, 82%, 35%) |
| OKLCH | oklch(42.3% 0.158 260.4) |
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 #1047A2 | 8.58:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #1047A2 | 2.44:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #1047A2 text on white | 8.58:1 | AAA | Lc 88.8 | Fine for body text |
| #1047A2 text on black | 2.44:1 | Fails | Lc -13.4 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFC
oklch(93.7% 0.026 259)
-
Step 200
200
#C6DAFC
oklch(88.4% 0.052 261.1)
-
Step 300
300
#9EC2FD
oklch(80.9% 0.093 260.1)
-
Step 400
400
#699FFC
oklch(70.6% 0.148 260.7)
-
Step 500
500
#4084F9
oklch(63.1% 0.188 260.5)
-
Step 600
600
#1E6AE8
oklch(55.6% 0.205 260.4)
-
Step 700
700
#1057CA
oklch(49% 0.191 260.5)
-
Step 800
800 (this color)
#1047A2
oklch(42.3% 0.158 260.4)
-
Step 900
900
#163E81
oklch(37.7% 0.122 260.2)
-
Step 950
950
#0E254C
oklch(27.1% 0.078 260.3)
#1047A2 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) | #0053A5 | 0.031 |
| Deuteranopia (no green cones) | #0046A0 | 0.008 |
| Tritanopia (no blue cones) | #005E6D | 0.121 |
| Achromatopsia (no color) | #4C4C4C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1047A2
#1047A2
oklch(42.3% 0.158 260.4)
- #664800
#664800
oklch(42.3% 0.087 81.3)
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 #1047A2, closest first.
No curated palette has a color within ΔE 0.04 of #1047A2.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.032
- Sapphire #2138AB ΔE 0.038
- Dusk Blue #26538D ΔE 0.054
- Light Navy #155084 ΔE 0.058
- Blueberry #464196 ΔE 0.059
- Blue Blue #2242C7 ΔE 0.062
- Twilight Blue #0A437A ΔE 0.067
- Deep Sea Blue #015482 ΔE 0.068
Use #1047A2 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.