#1BA2FB
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.9% 0.168 245.4), rgb(27, 162, 251).
Aa
Black text reads best on this color (7.60:1).
About this color
#1BA2FB is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.168 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.038 away. Black text reads best on it, at 7.60:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.168) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.60:1 |
| White text | 2.76:1 |
Values
| HEX | #1BA2FB |
| RGB | rgb(27, 162, 251) |
| HSL | hsl(204, 97%, 55%) |
| OKLCH | oklch(68.9% 0.168 245.4) |
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 #1BA2FB | 2.76:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #1BA2FB | 7.60:1 | AAA | Lc 51.3 | Large or bold text, headings |
| #1BA2FB text on white | 2.76:1 | Fails | Lc 52.7 | Large or bold text, headings |
| #1BA2FB text on black | 7.60:1 | AAA | Lc -49.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#EEF7FF
oklch(97.2% 0.014 244.7)
-
Step 100
100
#DAEDFD
oklch(93.7% 0.03 243.4)
-
Step 200
200
#BADEFE
oklch(88.5% 0.058 245.4)
-
Step 300
300
#87C8FF
oklch(81% 0.103 245.1)
-
Step 400
400 (this color)
#1BA2FB
oklch(68.9% 0.168 245.4)
-
Step 500
500
#0090E3
oklch(63.2% 0.16 245.3)
-
Step 600
600
#0079C0
oklch(55.7% 0.141 245.3)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900
#004571
oklch(37.8% 0.096 245.5)
-
Step 950
950
#002945
oklch(27.1% 0.068 244.5)
#1BA2FB 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) | #77A6FF | 0.067 |
| Deuteranopia (no green cones) | #5793F9 | 0.047 |
| Tritanopia (no blue cones) | #00B8C3 | 0.117 |
| Achromatopsia (no color) | #9C9C9C | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1BA2FB
#1BA2FB
oklch(68.9% 0.168 245.4)
- #DA8400
#DA8400
oklch(68.9% 0.154 65.7)
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 #1BA2FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.038
- Dodger Blue #1E90FF ΔE 0.049
- Cornflower Blue #6495ED ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.057
- Soft Blue #6488EA ΔE 0.075
- Deep Sky Blue #00BFFF ΔE 0.078
- Periwinkle Blue #8F99FB ΔE 0.094
- Water Blue #0E87CC ΔE 0.095
Use #1BA2FB 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.