#1F6BB4
Closest named color: Mid Blue (#276AB3). oklch(52.1% 0.136 251.6), rgb(31, 107, 180).
Aa
White text reads best on this color (5.49:1).
About this color
#1F6BB4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.136 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.005 away. White text reads best on it, at 5.49:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.82:1 |
| White text | 5.49:1 |
Values
| HEX | #1F6BB4 |
| RGB | rgb(31, 107, 180) |
| HSL | hsl(209, 71%, 41%) |
| OKLCH | oklch(52.1% 0.136 251.6) |
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 #1F6BB4 | 5.49:1 | AA | Lc -82.3 | Fine for body text |
| Black text on #1F6BB4 | 3.82:1 | AA large text | Lc 27.1 | Dividers and decoration only |
| #1F6BB4 text on white | 5.49:1 | AA | Lc 77.0 | Fine for body text |
| #1F6BB4 text on black | 3.82:1 | AA large text | Lc -24.8 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF1
oklch(88.4% 0.037 252.1)
-
Step 300
300
#A2C4EA
oklch(80.9% 0.065 251.5)
-
Step 400
400
#6EA5E0
oklch(70.8% 0.105 251.1)
-
Step 500
500
#458DD8
oklch(63.2% 0.135 251.6)
-
Step 600
600
#2275C5
oklch(55.6% 0.146 251.8)
-
Step 700
700 (this color)
#1F6BB4
oklch(52.1% 0.136 251.6)
-
Step 800
800
#14508A
oklch(42.6% 0.113 251.9)
-
Step 900
900
#19436E
oklch(37.7% 0.087 251.7)
-
Step 950
950
#102841
oklch(27.2% 0.056 251.4)
#1F6BB4 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) | #4770B7 | 0.038 |
| Deuteranopia (no green cones) | #2E63B3 | 0.022 |
| Tritanopia (no blue cones) | #007C87 | 0.099 |
| Achromatopsia (no color) | #696969 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F6BB4
#1F6BB4
oklch(52.1% 0.136 251.6)
- #905C00
#905C00
oklch(52% 0.112 71.4)
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 #1F6BB4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.005
- French Blue #436BAD ΔE 0.030
- Flat Blue #3C73A8 ΔE 0.040
- Nice Blue #107AB0 ΔE 0.044
- Windows Blue #3778BF ΔE 0.045
- Muted Blue #3B719F ΔE 0.046
- Ocean Blue #03719C ΔE 0.047
- Peacock Blue #016795 ΔE 0.052
Use #1F6BB4 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.