#1157AA
Closest named color: Dusk Blue (#26538D). oklch(46.5% 0.149 256.3), rgb(17, 87, 170).
Aa
White text reads best on this color (7.07:1).
About this color
#1157AA is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.149 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.047 away. White text reads best on it, at 7.07:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #1157AA |
| RGB | rgb(17, 87, 170) |
| HSL | hsl(213, 82%, 37%) |
| OKLCH | oklch(46.5% 0.149 256.3) |
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 #1157AA | 7.07:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #1157AA | 2.96:1 | Fails | Lc 20.1 | Dividers and decoration only |
| #1157AA text on white | 7.07:1 | AAA | Lc 83.9 | Fine for body text |
| #1157AA text on black | 2.96:1 | Fails | Lc -18.0 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C9DBF4
oklch(88.6% 0.04 256.6)
-
Step 300
300
#A3C3EF
oklch(80.9% 0.072 256.4)
-
Step 400
400
#70A3E7
oklch(70.8% 0.114 255.9)
-
Step 500
500
#498AE0
oklch(63.1% 0.146 256.2)
-
Step 600
600
#2972CE
oklch(55.6% 0.159 256.2)
-
Step 700
700 (this color)
#1157AA
oklch(46.5% 0.149 256.3)
-
Step 800
800
#194E90
oklch(42.7% 0.122 256.1)
-
Step 900
900
#1B4173
oklch(37.6% 0.096 256.4)
-
Step 950
950
#112743
oklch(27.1% 0.059 255.4)
#1157AA 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) | #255FAD | 0.027 |
| Deuteranopia (no green cones) | #0052A8 | 0.016 |
| Tritanopia (no blue cones) | #006B78 | 0.112 |
| Achromatopsia (no color) | #585858 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1157AA
#1157AA
oklch(46.5% 0.149 256.3)
- #785100
#785100
oklch(46.6% 0.098 76.8)
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 #1157AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.053
- Cobalt #1E488F ΔE 0.056
- Mid Blue #276AB3 ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.060
- Peacock Blue #016795 ΔE 0.062
- Light Navy #155084 ΔE 0.063
- Dusky Blue #475F94 ΔE 0.066
Use #1157AA 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.