#1B85AE
Closest named color: Blue NCS (#118AB2). oklch(57.9% 0.109 230.4), rgb(27, 133, 174).
Aa
Black text reads best on this color (5.01:1).
About this color
#1B85AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.109 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.014 away. Black text reads best on it, at 5.01:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #1B85AE |
| RGB | rgb(27, 133, 174) |
| HSL | hsl(197, 73%, 39%) |
| OKLCH | oklch(57.9% 0.109 230.4) |
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 #1B85AE | 4.18:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #1B85AE | 5.01:1 | AA | Lc 35.6 | Non-text elements, placeholder text |
| #1B85AE text on white | 4.18:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #1B85AE text on black | 5.01:1 | AA | Lc -33.2 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A1C7DB
oklch(80.9% 0.049 231.1)
-
Step 400
400
#6BAAC8
oklch(70.7% 0.078 229.8)
-
Step 500
500
#3E94BA
oklch(63% 0.1 230.3)
-
Step 600
600 (this color)
#1B85AE
oklch(57.9% 0.109 230.4)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#055774
oklch(42.8% 0.083 230)
-
Step 900
900
#13485E
oklch(37.8% 0.065 230.2)
-
Step 950
950
#0E2A37
oklch(27% 0.041 231.2)
#1B85AE 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) | #7083B0 | 0.074 |
| Deuteranopia (no green cones) | #5D76AD | 0.062 |
| Tritanopia (no blue cones) | #009093 | 0.061 |
| Achromatopsia (no color) | #7C7C7C | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B85AE
#1B85AE
oklch(57.9% 0.109 230.4)
- #AD653A
#AD653A
oklch(57.9% 0.109 50.1)
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 #1B85AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.014
- Teal Blue #01889F ΔE 0.029
- Steel Blue #4682B4 ΔE 0.031
- Nice Blue #107AB0 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.035
- Cerulean #457B9D ΔE 0.038
- Off Blue #5684AE ΔE 0.042
- Stormy Blue #507B9C ΔE 0.045
Use #1B85AE 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.