#1B79A2
Closest named color: Nice Blue (#107AB0). oklch(54.3% 0.104 233), rgb(27, 121, 162).
Aa
White text reads best on this color (4.88:1).
About this color
#1B79A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.104 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.022 away. White text reads best on it, at 4.88:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.30:1 |
| White text | 4.88:1 |
Values
| HEX | #1B79A2 |
| RGB | rgb(27, 121, 162) |
| HSL | hsl(198, 71%, 37%) |
| OKLCH | oklch(54.3% 0.104 233) |
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 #1B79A2 | 4.88:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #1B79A2 | 4.30:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #1B79A2 text on white | 4.88:1 | AA | Lc 73.4 | Content text, not long reading |
| #1B79A2 text on black | 4.30:1 | AA large text | Lc -28.3 | 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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A4C6DA
oklch(80.8% 0.046 233.9)
-
Step 400
400
#70A9C8
oklch(70.7% 0.075 233.1)
-
Step 500
500
#4693BA
oklch(63.1% 0.096 233.2)
-
Step 600
600 (this color)
#1B79A2
oklch(54.3% 0.104 233)
-
Step 700
700
#10698E
oklch(49.1% 0.096 232.9)
-
Step 800
800
#135673
oklch(42.7% 0.079 232.3)
-
Step 900
900
#19475D
oklch(37.7% 0.062 232.6)
-
Step 950
950
#102A37
oklch(27.1% 0.04 232.6)
#1B79A2 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) | #6578A4 | 0.067 |
| Deuteranopia (no green cones) | #536CA1 | 0.055 |
| Tritanopia (no blue cones) | #008487 | 0.062 |
| Achromatopsia (no color) | #717171 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B79A2
#1B79A2
oklch(54.3% 0.104 233)
- #9E5D30
#9E5D30
oklch(54.3% 0.104 53.3)
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 #1B79A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.022
- Sea Blue #047495 ΔE 0.025
- Ocean Blue #03719C ΔE 0.027
- Muted Blue #3B719F ΔE 0.028
- Flat Blue #3C73A8 ΔE 0.029
- Ocean #017B92 ΔE 0.030
- Cerulean #457B9D ΔE 0.031
- Dull Blue #49759C ΔE 0.033
Use #1B79A2 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.